(4(2x-3)+x) को सरल करने पर कौन-सा व्यंजक मिलेगा?
Which expression is obtained after simplifying (4(2x-3)+x)?
#algebraic-expressions
#expansion
#simplification
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A (8x-12)
B (9x+12)
C (9x-12)
D (8x-3)
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Correct Answer
C. (9x-12)
Explanation
Simple Explanation
पहले (4(2x-3)=8x-12) करें और फिर (x) जोड़ें। समान पद मिलाने पर (9x-12) मिलता है। / First expand (4(2x-3)=8x-12) and then add (x). Combining like terms gives (9x-12).
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(5(2x-1)+3) को सरल करने पर कौन-सा व्यंजक मिलेगा?
Which expression is obtained after simplifying (5(2x-1)+3)?
#algebraic-expressions
#expansion
#simplification
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A (10x-8)
B (7x+2)
C (10x+2)
D (10x-2)
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Correct Answer
D. (10x-2)
Explanation
Simple Explanation
(5(2x-1)=10x-5) और (3) जोड़ने पर (10x-2) मिलता है। कोष्ठक पहले खोलें। / (5(2x-1)=10x-5) and adding (3) gives (10x-2). Open brackets first.
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यदि (a=-2) और (b=3) हो तो \(a^2+2b\) का मान क्या होगा?
If (a=-2) and (b=3), what is the value of \(a^2+2b\)?
#algebraic-expressions
#substitution
#negative-values
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A (10)
B (2)
C (-10)
D (8)
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Explanation
Simple Explanation
मान रखने पर ((-2)2 +2(3)=4+6=10)। ऋणात्मक संख्या का वर्ग करते समय कोष्ठक लगाएँ। / Substituting gives ((-2)2 +2(3)=4+6=10). Use brackets while squaring a negative number.
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यदि (x=-3) हो तो \(x^2-2x+4\) का मान क्या होगा?
If (x=-3), what is the value of \(x^2-2x+4\)?
#algebraic-expressions
#evaluation
#negative-substitution
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A (7)
B (19)
C (1)
D (-11)
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Explanation
Simple Explanation
((-3)2 -2(-3)+4=9+6+4=19)। ऋणात्मक मान रखते समय कोष्ठक लगाएँ। / ((-3)2 -2(-3)+4=9+6+4=19). Use brackets while substituting a negative value.
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(7xy-2x+5xy+3x) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying (7xy-2x+5xy+3x)?
#algebraic-expressions
#like-terms
#two-variables
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A (12xy-5x)
B (12x+y)
C (2xy+x)
D (12xy+x)
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Correct Answer
D. (12xy+x)
Explanation
Simple Explanation
(7xy+5xy=12xy) और (-2x+3x=x) है। समान चर भाग वाले पदों को साथ मिलाएँ। / (7xy+5xy=12xy) and (-2x+3x=x). Combine terms with the same variable part.
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(6a+4b-2a+5b) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying (6a+4b-2a+5b)?
#algebraic-expressions
#like-terms
#two-variables
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A (4a+9b)
B (8a+b)
C (4a-b)
D (8a+9b)
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Correct Answer
A. (4a+9b)
Explanation
Simple Explanation
(6a-2a=4a) और (4b+5b=9b)। समान चर वाले पदों को अलग-अलग मिलाएँ। / (6a-2a=4a) and (4b+5b=9b). Combine terms with the same variable separately.
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किसी संख्या (n) के वर्ग से उसके (5) गुने को घटाने का व्यंजक कौन-सा है?
Which expression represents subtracting (5) times a number (n) from the square of that number?
#algebraic-expressions
#word-to-expression
#difference
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A \(5n-n^2\)
B \(n^2-5n\)
C \(n^2+5n\)
D \(5n^2-n\)
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Correct Answer
B. \(n^2-5n\)
Explanation
Simple Explanation
संख्या का वर्ग \(n^2\) है और उसका (5) गुना (5n) है। घटाने पर \(n^2-5n\) मिलेगा। / The square of the number is \(n^2\) and (5) times it is (5n). Subtracting gives \(n^2-5n\).
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किसी संख्या (p) के वर्ग में उसके (4) गुने को जोड़ने का व्यंजक कौन-सा है?
Which expression represents adding four times a number (p) to its square?
#algebraic-expressions
#word-to-expression
#sum
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A \(4p^2+p\)
B \(p^2-4p\)
C \(p^2+4p\)
D (4\(p^2+p\))
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Correct Answer
C. \(p^2+4p\)
Explanation
Simple Explanation
संख्या का वर्ग \(p^2\) है और उसका (4) गुना (4p) है। जोड़ने पर \(p^2+4p\) मिलता है। / The square of the number is \(p^2\) and four times it is (4p). Adding gives \(p^2+4p\).
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\(3p^2-4p+6-2p^2+p\) में सरल करने के बाद \(p^2\) का गुणांक क्या होगा?
After simplifying \(3p^2-4p+6-2p^2+p\), what will be the coefficient of \(p^2\)?
#algebraic-expressions
#coefficient
#combine-like-terms
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A (3)
B (-2)
C (1)
D (-3)
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Explanation
Simple Explanation
\(3p^2-2p^2=p^2\) इसलिए \(p^2\) का गुणांक (1) है। गुणांक को चिन्ह सहित पहचानें। / \(3p^2-2p^2=p^2\), so the coefficient of \(p^2\) is (1). Identify coefficients with their signs.
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\(9m^2-3m^2+7m-2\) में \(m^2\) पदों को मिलाने पर क्या मिलेगा?
What is obtained by combining the \(m^2\) terms in \(9m^2-3m^2+7m-2\)?
#algebraic-expressions
#like-terms
#powers
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A \(12m^2\)
B (6m)
C \(6m^2+7m\)
D \(6m^2\)
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Correct Answer
D. \(6m^2\)
Explanation
Simple Explanation
\(9m^2-3m^2=6m^2\)। केवल समान घात वाले पदों को मिलाएँ। / \(9m^2-3m^2=6m^2\). Combine only terms with the same power.
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यदि (a=2) और (b=-4) हो तो (ab+3a) का मान क्या होगा?
If (a=2) and (b=-4), what is the value of (ab+3a)?
#algebraic-expressions
#substitution
#two-variables
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A (-2)
B (2)
C (-14)
D (10)
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Explanation
Simple Explanation
(ab+3a=2(-4)+3(2)=-8+6=-2)। पहले गुणा करें फिर जोड़ें। / (ab+3a=2(-4)+3(2)=-8+6=-2). Multiply first and then add.
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(8x-(3x-5)) को सरल करने पर कौन-सा व्यंजक मिलेगा?
Which expression is obtained after simplifying (8x-(3x-5))?
#algebraic-expressions
#brackets
#minus-sign
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A (5x-5)
B (5x+5)
C (11x-5)
D (11x+5)
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Explanation
Simple Explanation
कोष्ठक से पहले ऋण चिन्ह हो तो अंदर के चिन्ह बदलते हैं। इसलिए (8x-3x+5=5x+5)। / When a minus sign is before the bracket, signs inside change. So (8x-3x+5=5x+5).
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कौन-सा जोड़ा असमान पदों का है?
Which pair consists of unlike terms?
#algebraic-expressions
#unlike-terms
#exponents
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A (7xy) और (-2xy) / (7xy) and (-2xy)
B \(5r^2s\) और \(9r^2s\) / \(5r^2s\) and \(9r^2s\)
C \(4u^2\) और (4u) / \(4u^2\) and (4u)
D (3pq) और (-8pq) / (3pq) and (-8pq)
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Correct Answer
C. \(4u^2\) और (4u) / \(4u^2\) and (4u)
Explanation
Simple Explanation
\(4u^2\) और (4u) में (u) की घात अलग है। घात अलग हो तो पद असमान होते हैं। / In \(4u^2\) and (4u), the power of (u) is different. Different powers make terms unlike.
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\(2y^2+5y-7+3y^2-2y\) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying \(2y^2+5y-7+3y^2-2y\)?
#algebraic-expressions
#simplification
#quadratic
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A \(5y^2+7y-7\)
B \(y^2+3y-7\)
C \(5y^2+3y+7\)
D \(5y^2+3y-7\)
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Correct Answer
D. \(5y^2+3y-7\)
Explanation
Simple Explanation
\(2y^2+3y^2=5y^2\) और (5y-2y=3y)। स्थिर पद (-7) अलग रहता है। / \(2y^2+3y^2=5y^2\) and (5y-2y=3y). The constant term (-7) remains separate.
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\(12p^2q\) में (q) की घात क्या है?
What is the power of (q) in \(12p^2q\)?
#algebraic-expressions
#power
#variables
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A (1)
B (2)
C (12)
D (3)
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Explanation
Simple Explanation
(q) पर कोई घात लिखी नहीं है इसलिए उसकी घात (1) मानी जाती है। अदृश्य घात को (1) समझें। / No power is written on (q), so its power is taken as (1). Treat an invisible power as (1).
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कौन-सा व्यंजक (x) और (y) के योग से (6) कम को दर्शाता है?
Which expression represents (6) less than the sum of (x) and (y)?
#algebraic-expressions
#word-to-expression
#subtraction
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A (x-y-6)
B (x+y+6)
C (x+y-6)
D (6-x-y)
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Correct Answer
C. (x+y-6)
Explanation
Simple Explanation
पहले योग (x+y) है और उससे (6) घटाना है। इसलिए (x+y-6) सही है। / First the sum is (x+y), and (6) is subtracted from it. So (x+y-6) is correct.
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(4(3n+2)-2(n+5)) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying (4(3n+2)-2(n+5))?
#algebraic-expressions
#expansion
#combine-like-terms
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A (10n-2)
B (10n-2)
C (14n+18)
D (10n+18)
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Correct Answer
A. (10n-2)
Explanation
Simple Explanation
खोलने पर (12n+8-2n-10) मिलता है। समान पद मिलाकर (10n-2) बनेगा। / Expanding gives (12n+8-2n-10). Combining like terms gives (10n-2).
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\(3ab^2\) और \(-10ab^2\) के बारे में सही कथन कौन-सा है?
Which statement is correct about \(3ab^2\) and \(-10ab^2\)?
#algebraic-expressions
#like-terms
#multiple-variables
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A ये स्थिर पद हैं / They are constant terms
B ये असमान पद हैं / They are unlike terms
C ये समान पद हैं / They are like terms
D इनके चर भाग अलग हैं / Their variable parts are different
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Correct Answer
C. ये समान पद हैं / They are like terms
Explanation
Simple Explanation
दोनों पदों का चर भाग \(ab^2\) समान है। गुणांक अलग होने पर भी पद समान हो सकते हैं। / Both terms have the same variable part \(ab^2\). Terms can be like even if coefficients are different.
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यदि (t=5) हो तो \(t^2-4t+6\) का मान क्या होगा?
If (t=5), what is the value of \(t^2-4t+6\)?
#algebraic-expressions
#evaluation
#order-of-operations
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A (31)
B (11)
C (9)
D (1)
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Explanation
Simple Explanation
(52 -4(5)+6=25-20+6=11)। पहले घात फिर गुणा करें। / (52 -4(5)+6=25-20+6=11). Do powers first and then multiplication.
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(15xy-4x+6xy+9x) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying (15xy-4x+6xy+9x)?
#algebraic-expressions
#like-terms
#two-variables
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A (21xy+5x)
B (9xy+5x)
C \(21x^2y+5\)
D (21xy-13x)
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Correct Answer
A. (21xy+5x)
Explanation
Simple Explanation
(15xy+6xy=21xy) और (-4x+9x=5x)। समान चर भाग वाले पद साथ मिलाएँ। / (15xy+6xy=21xy) and (-4x+9x=5x). Combine terms with the same variable part.
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\(-6x^2+11x-3\) में \(x^2\) का गुणांक क्या है?
What is the coefficient of \(x^2\) in \(-6x^2+11x-3\)?
#algebraic-expressions
#coefficient
#negative
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A (6)
B (11)
C (-6)
D (-3)
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Explanation
Simple Explanation
\(x^2\) के साथ (-6) गुणा हो रहा है। गुणांक हमेशा चिन्ह सहित लिया जाता है। / \(x^2\) is multiplied by (-6). A coefficient is always taken with its sign.
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कौन-सा व्यंजक (r) के दोगुने और (s) के तीन गुने के योग को दर्शाता है?
Which expression represents the sum of twice (r) and three times (s)?
#algebraic-expressions
#word-to-expression
#two-variables
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A (2(r+3s))
B (3r+2s)
C (2r-3s)
D (2r+3s)
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Correct Answer
D. (2r+3s)
Explanation
Simple Explanation
(r) का दोगुना (2r) और (s) का तीन गुना (3s) है। योग (2r+3s) होगा। / Twice (r) is (2r) and three times (s) is (3s). Their sum is (2r+3s).
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यदि (u=-2) और (v=1) हो तो \(u^2-uv\) का मान क्या होगा?
If (u=-2) and (v=1), what is the value of \(u^2-uv\)?
#algebraic-expressions
#substitution
#signs
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A (2)
B (4)
C (6)
D (-2)
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Explanation
Simple Explanation
(u-2 -uv=(-2)2 -(-2)(1)=4+2=6)। ऋणात्मक गुणन का चिन्ह ध्यान से देखें। / (u-2 -uv=(-2)2 -(-2)(1)=4+2=6). Watch the sign in negative multiplication carefully.
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(2x-2 (3x-4)) को खोलने पर कौन-सा व्यंजक मिलेगा?
Which expression is obtained by expanding (2x-2 (3x-4))?
#algebraic-expressions
#expansion
#monomial-product
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A \(6x^2-8x^2\)
B \(6x^3-8x^2\)
C \(5x^3-6x^2\)
D \(6x^3+8x^2\)
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Correct Answer
B. \(6x^3-8x^2\)
Explanation
Simple Explanation
\(2x^2\) को (3x) और (-4) दोनों से गुणा करें। इससे \(6x^3-8x^2\) मिलता है। / Multiply \(2x^2\) by both (3x) and (-4). This gives \(6x^3-8x^2\).
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\(5p^2q-3pq+2p^2q\) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying \(5p^2q-3pq+2p^2q\)?
#algebraic-expressions
#simplification
#multiple-variables
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A \(7p^2q-3pq\)
B \(10p^2q-3pq\)
C (7pq-3pq)
D \(4p^2q\)
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Correct Answer
A. \(7p^2q-3pq\)
Explanation
Simple Explanation
\(5p^2q\) और \(2p^2q\) समान पद हैं। (-3pq) अलग चर भाग वाला पद है। / \(5p^2q\) and \(2p^2q\) are like terms. (-3pq) has a different variable part.
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(4x+7-9x+2) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying (4x+7-9x+2)?
#algebraic-expressions
#simplification
#constant
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A (13x+9)
B (-5x+9)
C (5x+9)
D (-5x+5)
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Correct Answer
B. (-5x+9)
Explanation
Simple Explanation
(4x-9x=-5x) और (7+2=9)। चर और स्थिर पद अलग-अलग मिलाएँ। / (4x-9x=-5x) and (7+2=9). Combine variable and constant terms separately.
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किस व्यंजक का सरल रूप (7x-14) है?
Which expression has the simplified form (7x-14)?
#algebraic-expressions
#equivalent-expression
#expansion
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A (7(x+2))
B (14(x-7))
C (7(x-2))
D (2(7x-14))
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Correct Answer
C. (7(x-2))
Explanation
Simple Explanation
(7(x-2)) खोलने पर (7x-14) मिलता है। विकल्प जाँचने के लिए वितरण नियम लगाएँ। / Expanding (7(x-2)) gives (7x-14). Use the distributive rule to check options.
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\(3x^2y^2\) में कुल चर कौन-कौन से हैं?
Which variables are present in \(3x^2y^2\)?
#algebraic-expressions
#variables
#identification
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A केवल (x) / Only (x)
B केवल (y) / Only (y)
C (x) और (y) / (x) and (y)
D (3) और (2) / (3) and (2)
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Correct Answer
C. (x) और (y) / (x) and (y)
Explanation
Simple Explanation
इस पद में चर (x) और (y) हैं। गुणांक और घात चर नहीं होते। / The variables in this term are (x) and (y). Coefficients and powers are not variables.
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यदि (k=3), तो (2(k+4)-k-2 ) का मान क्या होगा?
If (k=3), what is the value of (2(k+4)-k-2 )?
#algebraic-expressions
#evaluation
#brackets
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A (5)
B (7)
C (9)
D (14)
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Explanation
Simple Explanation
(2(3+4)-32 =14-9=5)। पहले कोष्ठक और घात का मान निकालें। / (2(3+4)-32 =14-9=5). Evaluate brackets and powers first.
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\(11a^2-4a+6a-5a^2\) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying \(11a^2-4a+6a-5a^2\)?
#algebraic-expressions
#combine-like-terms
#powers
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A \(16a^2+2a\)
B \(6a^2+2a\)
C \(6a^2-10a\)
D \(6a^3+2a\)
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Correct Answer
B. \(6a^2+2a\)
Explanation
Simple Explanation
\(11a^2-5a^2=6a^2\) और (-4a+6a=2a)। घात के अनुसार पद मिलाएँ। / \(11a^2-5a^2=6a^2\) and (-4a+6a=2a). Combine terms according to powers.
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कौन-सा व्यंजक (x) के वर्ग और (5) के योग के दोगुने को दर्शाता है?
Which expression represents twice the sum of the square of (x) and (5)?
#algebraic-expressions
#word-to-expression
#brackets
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A \(2x^2+5\)
B \(x^2+10\)
C (2\(x^2+5\))
D (2(x+5)2 )
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Correct Answer
C. (2\(x^2+5\))
Explanation
Simple Explanation
पहले योग \(x^2+5\) बनेगा और फिर उसका दोगुना लिया जाएगा। इसलिए (2\(x^2+5\)) सही है। / First form the sum \(x^2+5\), then take twice of it. So (2\(x^2+5\)) is correct.
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(7(2r-3)+4(r+1)) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying (7(2r-3)+4(r+1))?
#algebraic-expressions
#expansion
#simplification
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A (10r-17)
B (18r-17)
C (18r+25)
D (10r+25)
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Correct Answer
B. (18r-17)
Explanation
Simple Explanation
खोलने पर (14r-21+4r+4) मिलता है। समान पद मिलाकर (18r-17) बनेगा। / Expanding gives (14r-21+4r+4). Combining like terms gives (18r-17).
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\(2ab+5a^2b-7ab+3a^2b\) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying \(2ab+5a^2b-7ab+3a^2b\)?
#algebraic-expressions
#like-terms
#multiple-powers
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A \(8a^2b-5ab\)
B \(8ab-5a^2b\)
C \(-5a^2b+8ab\)
D \(10a^3b\)
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Correct Answer
A. \(8a^2b-5ab\)
Explanation
Simple Explanation
\(5a^2b+3a^2b=8a^2b\) और (2ab-7ab=-5ab)। समान चर भाग वाले पद ही मिलते हैं। / \(5a^2b+3a^2b=8a^2b\) and (2ab-7ab=-5ab). Only terms with the same variable part combine.
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यदि (x=2) और (y=-1), तो \(x^2+xy+y^2\) का मान क्या होगा?
If (x=2) and (y=-1), what is the value of \(x^2+xy+y^2\)?
#algebraic-expressions
#evaluation
#two-variables
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A (7)
B (1)
C (3)
D (5)
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Explanation
Simple Explanation
(22 +2(-1)+(-1)2 =4-2+1=3)। दोनों चर के मान सावधानी से रखें। / (22 +2(-1)+(-1)2 =4-2+1=3). Substitute both variables carefully.
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\(5x^2-3x+2\) में रैखिक पद कौन-सा है?
Which is the linear term in \(5x^2-3x+2\)?
#algebraic-expressions
#linear-term
#identification
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A \(5x^2\)
B (2)
C (-3x)
D (3x)
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Explanation
Simple Explanation
रैखिक पद में चर की घात (1) होती है। यहाँ रैखिक पद (-3x) है। / A linear term has the variable with power (1). Here the linear term is (-3x).
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कौन-सा व्यंजक (2(a+b)-a) के बराबर है?
Which expression is equal to (2(a+b)-a)?
#algebraic-expressions
#equivalent-expression
#brackets
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A (a+2b)
B (3a+2b)
C (a+b)
D (2a+b)
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Explanation
Simple Explanation
(2(a+b)-a=2a+2b-a=a+2b)। पहले कोष्ठक खोलें फिर समान पद मिलाएँ। / (2(a+b)-a=2a+2b-a=a+2b). Expand first and then combine like terms.
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\(4s^3-2s^2+s-8\) में सबसे बड़ी घात क्या है?
What is the highest power in \(4s^3-2s^2+s-8\)?
#algebraic-expressions
#highest-power
#degree-intro
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A (1)
B (2)
C (3)
D (8)
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Explanation
Simple Explanation
सबसे बड़ी घात \(s^3\) में (3) है। स्थिर पद की संख्या को घात न मानें। / The highest power is (3) in \(s^3\). Do not treat the number in the constant term as a power.
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\(6x^2y\) में संख्यात्मक गुणांक कौन-सा है?
What is the numerical coefficient in \(6x^2y\)?
#algebraic-expressions
#numerical-coefficient
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A \(x^2y\)
B (2)
C (6)
D (6x)
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Explanation
Simple Explanation
संख्यात्मक गुणांक वह संख्या है जो चर भाग से गुणा होती है। यहाँ यह संख्या (6) है। / The numerical coefficient is the number multiplying the variable part. Here this number is (6).
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(3(4x-5)-2(2x+1)) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying (3(4x-5)-2(2x+1))?
#algebraic-expressions
#expansion
#minus
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A (16x-17)
B (8x-17)
C (8x-13)
D (16x-13)
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Correct Answer
B. (8x-17)
Explanation
Simple Explanation
खोलने पर (12x-15-4x-2) मिलता है। समान पद मिलाकर (8x-17) बनेगा। / Expanding gives (12x-15-4x-2). Combining like terms gives (8x-17).
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कौन-सा व्यंजक (m) और (n) के अंतर के (5) गुने को दर्शाता है?
Which expression represents five times the difference of (m) and (n)?
#algebraic-expressions
#word-to-expression
#difference
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A (5m-n)
B (m-5n)
C (5(m-n))
D (5mn)
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Correct Answer
C. (5(m-n))
Explanation
Simple Explanation
पहले अंतर (m-n) बनता है और फिर उसे (5) से गुणा करते हैं। इसलिए (5(m-n)) सही है। / First the difference (m-n) is formed and then it is multiplied by (5). So (5(m-n)) is correct.
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\(10z^2+z-4z^2-6z+3\) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying \(10z^2+z-4z^2-6z+3\)?
#algebraic-expressions
#simplification
#quadratic
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A \(6z^2-5z+3\)
B \(14z^2-5z+3\)
C \(6z^2+7z+3\)
D \(6z^2-5z-3\)
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Correct Answer
A. \(6z^2-5z+3\)
Explanation
Simple Explanation
\(10z^2-4z^2=6z^2\) और (z-6z=-5z)। स्थिर पद (3) अलग रहता है। / \(10z^2-4z^2=6z^2\) and (z-6z=-5z). The constant term (3) remains separate.
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यदि (c=-2), तो \(2c^3+c^2\) का मान क्या होगा?
If (c=-2), what is the value of \(2c^3+c^2\)?
#algebraic-expressions
#evaluation
#cubic
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A (-12)
B (12)
C (-20)
D (20)
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Explanation
Simple Explanation
(2(-2)3 +(-2)2 =2(-8)+4=-12)। विषम घात में ऋण चिन्ह बचता है। / (2(-2)3 +(-2)2 =2(-8)+4=-12). A negative sign remains in an odd power.
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\(a^2b\) और \(ab^2\) समान पद क्यों नहीं हैं?
Why are \(a^2b\) and \(ab^2\) not like terms?
#algebraic-expressions
#unlike-terms
#concept
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A क्योंकि उनके गुणांक समान हैं / Because their coefficients are same
B क्योंकि चर ही नहीं हैं / Because there are no variables
C क्योंकि (a) और (b) की घातें अलग व्यवस्था में हैं / Because powers of (a) and (b) are arranged differently
D क्योंकि दोनों स्थिर पद हैं / Because both are constant terms
Explanation opens after your attempt
Correct Answer
C. क्योंकि (a) और (b) की घातें अलग व्यवस्था में हैं / Because powers of (a) and (b) are arranged differently
Explanation
Simple Explanation
समान पदों में प्रत्येक चर की घात समान होनी चाहिए। यहाँ (a) और (b) की घातें अलग हैं। / Like terms must have the same power of each variable. Here the powers of (a) and (b) are different.
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(2x-3(4-x)) को सरल करने पर कौन-सा व्यंजक मिलेगा?
Which expression is obtained after simplifying (2x-3(4-x))?
#algebraic-expressions
#negative-distribution
#brackets
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A (5x-12)
B (5x+12)
C (-x-12)
D (-x+12)
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Correct Answer
A. (5x-12)
Explanation
Simple Explanation
(-3(4-x)=-12+3x), इसलिए (2x-12+3x=5x-12)। ऋणात्मक गुणन में चिन्ह ध्यान से बदलें। / (-3(4-x)=-12+3x), so (2x-12+3x=5x-12). Change signs carefully in negative multiplication.
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किस व्यंजक में (rs) का गुणांक (8) है?
In which expression is the coefficient of (rs) equal to (8)?
#algebraic-expressions
#coefficient
#two-variables
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A (r+8s)
B (8rs-5r)
C (rs+8)
D (8r-s)
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Correct Answer
B. (8rs-5r)
Explanation
Simple Explanation
(8rs-5r) में (rs) के साथ (8) गुणा हो रहा है। इसलिए (rs) का गुणांक (8) है। / In (8rs-5r), (rs) is multiplied by (8). Therefore, the coefficient of (rs) is (8).
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\(2x^2+3xy-4x^2+5xy\) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying \(2x^2+3xy-4x^2+5xy\)?
#algebraic-expressions
#like-terms
#mixed-terms
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A \(-2x^2+8xy\)
B \(6x^2+8xy\)
C \(-2x^2-2xy\)
D \(8x^2+8xy\)
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Correct Answer
A. \(-2x^2+8xy\)
Explanation
Simple Explanation
\(2x^2-4x^2=-2x^2\) और (3xy+5xy=8xy)। समान चर भाग वाले पदों को मिलाएँ। / \(2x^2-4x^2=-2x^2\) and (3xy+5xy=8xy). Combine terms with the same variable part.
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यदि (x=1) और (y=5), तो \(2x+y^2\) का मान क्या होगा?
If (x=1) and (y=5), what is the value of \(2x+y^2\)?
#algebraic-expressions
#evaluation
#two-variables
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A (15)
B (27)
C (12)
D (7)
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Explanation
Simple Explanation
(2(1)+52 =2+25=27)। पहले घात और गुणा का मान निकालें। / (2(1)+52 =2+25=27). Evaluate powers and multiplication first.
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कौन-सा विकल्प (6(x+1)-x) के बराबर है?
Which option is equal to (6(x+1)-x)?
#algebraic-expressions
#equivalent-expression
#simplification
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A (6x+1)
B (7x+6)
C (5x+6)
D (6x-1)
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Explanation
Simple Explanation
(6(x+1)-x=6x+6-x=5x+6)। समान पद मिलाकर बराबर रूप पहचानें। / (6(x+1)-x=6x+6-x=5x+6). Combine like terms to identify the equivalent form.
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\(x^2+x+x^2+x+1\) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying \(x^2+x+x^2+x+1\)?
#algebraic-expressions
#combine-like-terms
#repeated-terms
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A \(2x^2+2x+1\)
B \(4x^2+1\)
C \(2x^3+2x+1\)
D \(x^4+1\)
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Correct Answer
A. \(2x^2+2x+1\)
Explanation
Simple Explanation
दो \(x^2\) पद \(2x^2\) बनाते हैं और दो (x) पद (2x) बनाते हैं। स्थिर पद (1) अलग रहता है। / The two \(x^2\) terms make \(2x^2\), and the two (x) terms make (2x). The constant (1) remains separate.
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किस व्यंजक में (x) की घात (1) और (y) की घात (2) है?
In which expression is the power of (x) equal to (1) and the power of (y) equal to (2)?
#algebraic-expressions
#powers
#variable-part
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A \(x^2y\)
B \(xy^2\)
C \(x^2y^2\)
D (xy)
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Correct Answer
B. \(xy^2\)
Explanation
Simple Explanation
\(xy^2\) में (x) की अदृश्य घात (1) और (y) की घात (2) है। अदृश्य घात को (1) मानें। / In \(xy^2\), the invisible power of (x) is (1) and the power of (y) is (2). Treat an invisible power as (1).
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यदि (n=-4), तो \(\frac{n^2+n}{2}\) का मान क्या होगा?
If (n=-4), what is the value of \(\frac{n^2+n}{2}\)?
#algebraic-expressions
#evaluation
#fraction
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A (4)
B (6)
C (8)
D (10)
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Explanation
Simple Explanation
(\frac{(-4)2 +(-4)}{2}=\frac{16-4}{2}=6)। भिन्न में पहले अंश को सरल करें। / (\frac{(-4)2 +(-4)}{2}=\frac{16-4}{2}=6). Simplify the numerator first in a fraction.
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(3(a-b)+2(2a+b)) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying (3(a-b)+2(2a+b))?
#algebraic-expressions
#expansion
#two-variables
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A (7a-b)
B (7a+b)
C (5a-5b)
D (a+b)
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Explanation
Simple Explanation
खोलने पर (3a-3b+4a+2b) मिलता है। समान पद मिलाकर (7a-b) नहीं बल्कि (7a-b) मिलता है। / Expanding gives (3a-3b+4a+2b). Combining like terms gives (7a-b), not (7a+b).
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\(4x^2-6xy+3x^2+xy\) को सरल करने पर क्या मिलेगा?
What is obtained after simplifying \(4x^2-6xy+3x^2+xy\)?
#algebraic-expressions
#simplification
#xy-terms
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A \(x^2-5xy\)
B \(7x^2-5xy\)
C \(7x^2-7xy\)
D \(12x^2-5xy\)
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Correct Answer
B. \(7x^2-5xy\)
Explanation
Simple Explanation
\(4x^2+3x^2=7x^2\) और (-6xy+xy=-5xy)। समान चर भाग वाले पदों को मिलाएँ। / \(4x^2+3x^2=7x^2\) and (-6xy+xy=-5xy). Combine terms with the same variable part.
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किस विकल्प में \(2x^2+5x-1\) का स्थिर पद सही है?
Which option correctly gives the constant term of \(2x^2+5x-1\)?
#algebraic-expressions
#constant-term
#polynomial
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A (2)
B (5)
C (-1)
D (1x)
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Explanation
Simple Explanation
स्थिर पद में कोई चर नहीं होता और उसे चिन्ह सहित लिखा जाता है। यहाँ स्थिर पद (-1) है। / A constant term has no variable and is written with its sign. Here the constant term is (-1).
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