The quadratic polynomial has a repeated zero at

MATHEMATICS · Single correct · CBSE · Mathematics · Quadratic Equations · Quadratic Equations

Problem

The quadratic polynomial q(x)=x2+kx+mq(x)=x^{2}+kx+m has a repeated zero at x=4x=4. Which one of the following ordered pairs (k, m)(k,\,m) satisfies this condition? (a) (8, 16)(8,\,16) (b) (−4, 0)(-4,\,0) (c) (−8, 16)(-8,\,16) (d) (−8, 0)(-8,\,0)

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