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 51-60 of 550 questions.
What is the value of (a) in \(7x^2+2x-5=0\)?
A. (7)
मानक रूप \(ax^2+bx+c=0\) में (a) \(x^2\) का गुणांक होता है। इसलिए (a=7) है। / In \(ax^2+bx+c=0\), (a) is the coefficient of \(x^2\). So (a=7).
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What is the value of (b) in \(5x^2-9x+4=0\)?
B. (-9)
मानक रूप में (b) (x) का गुणांक होता है। यहां (b=-9) है। / In standard form, (b) is the coefficient of (x). Here (b=-9).
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What is the value of (c) in \(8x^2+3x+12=0\)?
C. (12)
मानक रूप में (c) स्थिर पद होता है। यहां स्थिर पद (12) है। / In standard form, (c) is the constant term. Here the constant term is (12).
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What will be the value of (c) in \(11x^2-6x=0\)?
C. (0)
इसे \(11x^2-6x+0=0\) लिखा जा सकता है। इसलिए (c=0) है। / It can be written as \(11x^2-6x+0=0\). So (c=0).
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What is the value of (b) in \(13x^2-20=0\)?
B. (0)
इसे \(13x^2+0x-20=0\) लिखते हैं। इसलिए (b=0) है। / We write it as \(13x^2+0x-20=0\). So (b=0).
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Under which condition will \(px^2+qx+r=0\) be a quadratic equation?
B. \(p\neq0\)
द्विघात पद \(px^2\) बना रहे इसलिए \(p\neq0\) होना चाहिए। यदि (p=0) हो तो घात (2) नहीं रहेगी। / The quadratic term \(px^2\) must remain, so \(p\neq0\). If (p=0), degree (2) will not remain.
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What is the standard form of \(4x^2+7x=9\)?
B. \(4x^2+7x-9=0\)
दाईं ओर के (9) को बाईं ओर लाने पर (-9) बनता है। इसलिए मानक रूप \(4x^2+7x-9=0\) है। / Moving (9) to the left makes it (-9). So the standard form is \(4x^2+7x-9=0\).
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Which is the standard form of \(2x^2=5x+3\)?
A. \(2x^2-5x-3=0\)
सभी पद एक तरफ लाने पर \(2x^2-5x-3=0\) मिलता है। चिन्ह बदलना जरूरी है। / Bringing all terms to one side gives \(2x^2-5x-3=0\). Changing signs is important.
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If (x=3), what is the left side of \(x^2-4x+3=0\)?
A. (0)
रखने पर \(3^2-4\cdot3+3=0\) मिलता है। इसलिए (x=3) हल है। / Substitution gives \(3^2-4\cdot3+3=0\). So (x=3) is a solution.
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Which value is one solution of \(x^2-25=0\)?
B. (5)
\(5^2-25=0\) है। इसलिए (5) इस समीकरण का हल है। / Since \(5^2-25=0\), (5) is a solution of this equation.
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