Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.
Difficulty select karke sirf is topic ke focused MCQs practice karein. Score, timer aur explanations student-friendly flow me milenge.
Showing 571-580 of 604 questions.
In which expression is the power of (u) equal to (3) and the power of (v) equal to (2)?
B. \(u^3v^2\)
\(u^3v^2\) में (u) की घात (3) और (v) की घात (2) है। हर चर की घात अलग देखें। / In \(u^3v^2\), the power of (u) is (3) and the power of (v) is (2). Check each variable's power separately.
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If (x=-3) and (y=2), what is the value of \(x^2y+xy^2\)?
A. (6)
(x-2y=9(2)=18) और (xy-2=(-3)(4)=-12) है। इसलिए कुल मान (6) है। / (x-2y=9(2)=18) and (xy-2=(-3)(4)=-12). Therefore, the total value is (6).
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What is the sum of \(7x^2-4x+9\) and \(-3x^2+8x-2\)?
B. \(4x^2+4x+7\)
समान पद जोड़ने पर \(7x^2-3x^2=4x^2\), (-4x+8x=4x), और (9-2=7)। / Adding like terms gives \(7x^2-3x^2=4x^2\), (-4x+8x=4x), and (9-2=7).
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If (5x-3=22), what is the value of \(x^2+2x\)?
C. (35)
(5x=25) से (x=5) है। इसलिए \(x^2+2x=25+10=35\)। / From (5x=25), (x=5). Therefore, \(x^2+2x=25+10=35\).
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Which term is a like term of \(8m^2n^4\)?
B. \(-3m^2n^4\)
समान पद में चर भाग \(m^2n^4\) ही होना चाहिए। \(-3m^2n^4\) का चर भाग समान है। / A like term must have the same variable part \(m^2n^4\). \(-3m^2n^4\) has the same variable part.
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What is obtained after simplifying (6x-2-4xy+y-2-\(2x^2+5xy-3y^2\))?
A. \(4x^2-9xy+4y^2\)
कोष्ठक घटाने पर सभी अंदरूनी चिन्ह बदलेंगे। सरल रूप \(4x^2-9xy+4y^2\) है। / When the bracket is subtracted, all inside signs change. The simplified form is \(4x^2-9xy+4y^2\).
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If (a-b=7) and (a+b=17), what is the value of (a)?
D. (12)
दोनों व्यंजकों को जोड़ने पर (2a=24) मिलता है। इसलिए (a=12) है। / Adding the two expressions gives (2a=24). Therefore, (a=12).
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What is the coefficient of \(x^2\) in \(4x^3-7x^2+2x-11\)?
B. (-7)
\(x^2\) वाला पद \(-7x^2\) है। इसलिए गुणांक (-7) है। / The term containing \(x^2\) is \(-7x^2\). Therefore, the coefficient is (-7).
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After simplifying (2(5x+3y)-7(x-y)+4x), what will be the coefficient of (x)?
B. (7)
सरल रूप (10x+6y-7x+7y+4x=7x+13y) है। इसलिए (x) का गुणांक (7) है। / The simplified form is (10x+6y-7x+7y+4x=7x+13y). So the coefficient of (x) is (7).
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Which expression has total degree (7)?
A. \(x^3y^4\)
\(x^3y^4\) में कुल घात (3+4=7) है। बहु-चर पद में घातों को जोड़ें। / In \(x^3y^4\), the total degree is (3+4=7). Add the powers in a multivariable term.
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