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 421-430 of 604 questions.
What is the simplified form of (6p-[3p-{4p-(p+6)}])?
B. (6p-6)
अंदर (4p-(p+6)=3p-6), फिर (3p-(3p-6)=6), इसलिए (6p-6)। अंदर से बाहर की ओर सरल करें। / Inside (4p-(p+6)=3p-6), then (3p-(3p-6)=6), so (6p-6). Simplify from inside to outside.
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If (u=2) and (v=-5), what is the value of \(u^2v+uv^2-3u\)?
B. (24)
मान रखने पर (4(-5)+2(25)-6=24) मिलता है। \(v^2\) धनात्मक होगा। / Substitution gives (4(-5)+2(25)-6=24). \(v^2\) will be positive.
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Which expression represents the square of the number (6) more than (y)?
C. ((y+6)2)
(6) अधिक संख्या (y+6) है। पूरे योग के वर्ग के लिए ((y+6)2) लिखते हैं। / The number (6) more than (y) is (y+6). To square the whole sum, write ((y+6)2).
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What is the simplified form of \(8x^2-7xy+4xy-5x^2\)?
A. \(3x^2-3xy\)
\(8x^2-5x^2=3x^2\) और (-7xy+4xy=-3xy)। \(x^2\) और (xy) अलग चर भाग हैं। / \(8x^2-5x^2=3x^2\) and (-7xy+4xy=-3xy). \(x^2\) and (xy) are different variable parts.
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If (m-n=9), what is the value of (2m-2n+11)?
C. (29)
(2m-2n+11=2(m-n)+11=18+11=29)। समान गुणांक दिखे तो सामान्य गुणक निकालें। / (2m-2n+11=2(m-n)+11=18+11=29). If the same coefficient appears, take the common factor.
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What is the simplified form of (4(3x-2y)-3(x-4y)+5y)?
A. (9x+9y)
खोलने पर (12x-8y-3x+12y+5y=9x+9y) मिलता है। समान चर वाले पद जोड़ें। / Expanding gives (12x-8y-3x+12y+5y=9x+9y). Combine terms with the same variable.
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Which option gives the correct sum of \(2x^2+5x-6\) and \(3x^2-7x+10\)?
C. \(5x^2-2x+4\)
योग में \(2x^2+3x^2=5x^2\), (5x-7x=-2x), और (-6+10=4) है। समान पद अलग-अलग जोड़ें। / In the sum, \(2x^2+3x^2=5x^2\), (5x-7x=-2x), and (-6+10=4). Add like terms separately.
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If (x=0), what is the value of \(-4x^3+9x^2-5x+13\)?
C. (13)
(x=0) रखने पर सभी चर वाले पद (0) हो जाते हैं। इसलिए मान (13) है। / Putting (x=0) makes all variable terms (0). Therefore the value is (13).
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What is the simplified form of (5a-2[3a-4(a-2)])?
A. (7a-16)
अंदर (3a-4a+8=-a+8), इसलिए (5a-2(-a+8)=7a-16)। अंदर का भाग पहले सरल करें। / Inside (3a-4a+8=-a+8), so (5a-2(-a+8)=7a-16). Simplify the inside part first.
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If (s=2) and (t=-1), what is the value of \(s^3t-st^3+2t\)?
A. (-8)
मान रखने पर (8(-1)-2(-1)-2=-8) मिलता है। ऋणात्मक मान की विषम घात ऋणात्मक रहती है। / Substitution gives (8(-1)-2(-1)-2=-8). An odd power of a negative value remains negative.
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