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 81-90 of 550 questions.
Which term is absent in \(x^2-13x=0\)?
C. स्थिर पदConstant term
इसे \(x^2-13x+0=0\) लिखा जा सकता है। इसलिए स्थिर पद अनुपस्थित है। / It can be written as \(x^2-13x+0=0\). So the constant term is absent.
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Which equation is a pure quadratic equation?
A. \(4x^2-16=0\)
शुद्ध द्विघात में (x) वाला रैखिक पद नहीं होता। \(4x^2-16=0\) ऐसा समीकरण है। / A pure quadratic has no linear (x) term. \(4x^2-16=0\) is such an equation.
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What happens when (x=-3) is put in \(x^2+6x+9=0\)?
A. समीकरण संतुष्ट होता हैThe equation is satisfied
((-3)2+6(-3)+9=0) है। अतः (x=-3) हल है। / ((-3)2+6(-3)+9=0). Hence (x=-3) is a solution.
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Which form represents (a=3), (b=-4), (c=-2)?
A. \(3x^2-4x-2=0\)
मानक रूप \(ax^2+bx+c=0\) में मान रखने पर \(3x^2-4x-2=0\) मिलता है। (b) का चिन्ह ध्यान रखें। / Putting the values in \(ax^2+bx+c=0\) gives \(3x^2-4x-2=0\). Watch the sign of (b).
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If (a=2), (b=0), (c=-18), what is the equation?
A. \(2x^2-18=0\)
मानक रूप में रखने पर \(2x^2+0x-18=0\) मिलता है। इसे \(2x^2-18=0\) लिखते हैं। / Substituting in standard form gives \(2x^2+0x-18=0\). This is written as \(2x^2-18=0\).
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Which equation becomes \(x^2+2x-8=0\) after writing in standard form?
A. \(x^2+2x=8\)
(8) को बाईं ओर लाने पर (-8) बनता है। इसलिए \(x^2+2x-8=0\) मिलता है। / Moving (8) to the left makes it (-8). So we get \(x^2+2x-8=0\).
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What is the maximum number of real solutions possible for \(2x^2+7x+3=0\)?
B. (2)
द्विघात समीकरण के अधिकतम (2) वास्तविक हल हो सकते हैं। घात से अधिकतम हलों का संकेत मिलता है। / A quadratic equation can have at most (2) real solutions. The degree indicates the maximum number of solutions.
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What is the value of (a+b+c) for \(5x^2+5x+5=0\)?
C. (15)
यहां (a=5), (b=5), (c=5) हैं। इसलिए (a+b+c=15) है। / Here (a=5), (b=5), (c=5). Therefore (a+b+c=15).
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What is the value of (a-b+c) for \(4x^2-2x-6=0\)?
A. (0)
यहां (a=4), (b=-2), (c=-6) हैं। इसलिए (a-b+c=4-(-2)-6=0) है। / Here (a=4), (b=-2), (c=-6). Thus (a-b+c=4-(-2)-6=0).
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What is the degree of \(6x^2-5x+2=0\)?
C. (2)
सबसे बड़ी घात (2) है। इसलिए यह द्विघात समीकरण है। / The highest power is (2). Therefore it is a quadratic equation.
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