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 251-260 of 604 questions.
Which expression is obtained after simplifying (4(2x-3)+x)?
C. (9x-12)
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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Which expression is obtained after simplifying (5(2x-1)+3)?
D. (10x-2)
(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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If (a=-2) and (b=3), what is the value of \(a^2+2b\)?
A. (10)
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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If (x=-3), what is the value of \(x^2-2x+4\)?
B. (19)
((-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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What is obtained after simplifying (7xy-2x+5xy+3x)?
D. (12xy+x)
(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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What is obtained after simplifying (6a+4b-2a+5b)?
A. (4a+9b)
(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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Which expression represents subtracting (5) times a number (n) from the square of that number?
B. \(n^2-5n\)
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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Which expression represents adding four times a number (p) to its square?
C. \(p^2+4p\)
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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After simplifying \(3p^2-4p+6-2p^2+p\), what will be the coefficient of \(p^2\)?
C. (1)
\(3p^2-2p^2=p^2\) 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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What is obtained by combining the \(m^2\) terms in \(9m^2-3m^2+7m-2\)?
D. \(6m^2\)
\(9m^2-3m^2=6m^2\)। केवल समान घात वाले पदों को मिलाएँ। / \(9m^2-3m^2=6m^2\). Combine only terms with the same power.
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