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If in \(4x^2+kx+28=0\), the product of roots is (-2) times the sum of roots, what is (k)?
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Answer and explanation
Correct answer: (14)
The product is (7) and the sum is \(-\frac{k}{4}\). From \(7=-2\left(-\frac{k}{4}\right)\), we get \(k=14\).
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What is the correct answer to this question?
(14)
Why is this the correct answer?
The product is (7) and the sum is \(-\frac{k}{4}\). From \(7=-2\left(-\frac{k}{4}\right)\), we get \(k=14\).
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Quadratic Equations. Topic: Introduction to Quadratic Equations.
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