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 271-280 of 604 questions.
What is the coefficient of \(x^2\) in \(-6x^2+11x-3\)?
C. (-6)
\(x^2\) 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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Which expression represents the sum of twice (r) and three times (s)?
D. (2r+3s)
(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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If (u=-2) and (v=1), what is the value of \(u^2-uv\)?
C. (6)
(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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Which expression is obtained by expanding (2x-2(3x-4))?
B. \(6x^3-8x^2\)
\(2x^2\) 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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What is obtained after simplifying \(5p^2q-3pq+2p^2q\)?
A. \(7p^2q-3pq\)
\(5p^2q\) 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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What is obtained after simplifying (4x+7-9x+2)?
B. (-5x+9)
(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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Which expression has the simplified form (7x-14)?
C. (7(x-2))
(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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Which variables are present in \(3x^2y^2\)?
C. (x) और (y)(x) and (y)
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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If (k=3), what is the value of (2(k+4)-k-2)?
A. (5)
(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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What is obtained after simplifying \(11a^2-4a+6a-5a^2\)?
B. \(6a^2+2a\)
\(11a^2-5a^2=6a^2\) 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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