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 361-370 of 604 questions.
Which expression represents subtracting (p) from (4) times the sum of (p) and (3)?
B. (4(p+3)-p)
पहले योग (p+3) है और उसका (4) गुना (4(p+3)) है। फिर उसमें से (p) घटता है। / First the sum is (p+3), and four times it is (4(p+3)). Then (p) is subtracted from it.
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If (r=-2), what is the value of \(r^3-4r^2+6r\)?
C. (-36)
मान रखने पर (-8-16-12=-36) मिलता है। सम और विषम घातों के चिह्न अलग होते हैं। / Substitution gives (-8-16-12=-36). Even and odd powers have different sign behavior.
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What is the simplified form of (3x-[4x-{2x-5}])?
A. (x+5)
अंदर (4x-(2x-5)=2x+5), फिर (3x-(2x+5)=x-5) नहीं बल्कि (x-5) मिलता है। कोष्ठक सावधानी से खोलें। / Inside (4x-(2x-5)=2x+5), then (3x-(2x+5)=x-5). Handle brackets carefully.
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Which is the correct simplified form of (3x-[4x-{2x-5}])?
B. (x-5)
अंदर (4x-{2x-5}=2x+5) है। इसलिए (3x-(2x+5)=x-5)। / Inside (4x-{2x-5}=2x+5). Therefore (3x-(2x+5)=x-5).
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Which option gives the correct simplified form of (7ab-4a+3ab+9a)?
A. (10ab+5a)
(7ab+3ab=10ab) और (-4a+9a=5a)। (ab) और (a) असमान पद हैं। / (7ab+3ab=10ab) and (-4a+9a=5a). (ab) and (a) are unlike terms.
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If (a+b=9) and (ab=14), what is the value of (3(a+b)-2ab)?
A. (-1)
दिए गए मान रखने पर (3(9)-2(14)=27-28=-1) मिलता है। पूरे (a+b) को एक मान की तरह लें। / Using the given values gives (3(9)-2(14)=27-28=-1). Treat the whole (a+b) as one value.
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What is the simplified form of (2x(5x-3)-3x(2x+1))?
A. \(4x^2-9x\)
खोलने पर \(10x^2-6x-6x^2-3x=4x^2-9x\) मिलता है। हर गुणन को अलग से करें। / Expanding gives \(10x^2-6x-6x^2-3x=4x^2-9x\). Do each multiplication separately.
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Which option gives the correct difference \(-3x^2-8x^2\)?
A. \(-11x^2\)
समान पदों के गुणांक (-3-8=-11) हैं। चर भाग \(x^2\) वही रहता है। / The coefficients of like terms are (-3-8=-11). The variable part \(x^2\) remains the same.
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If (x=4), what is the value of \(\frac{x^2+2x-8}{4}\)?
A. (4)
मान रखने पर \(\frac{16+8-8}{4}=\frac{16}{4}=4\) मिलता है। पहले पूरा अंश सरल करें। / Substitution gives \(\frac{16+8-8}{4}=\frac{16}{4}=4\). Simplify the whole numerator first.
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What is the simplified form of (9-(2x-3)+4(x-1))?
A. (2x+8)
खोलने पर (9-2x+3+4x-4=2x+8) मिलता है। कोष्ठक के बाहर ऋण हो तो चिह्न बदलें। / Expanding gives (9-2x+3+4x-4=2x+8). If a minus is outside the bracket, change signs.
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