The quadratic equation has two equal real roots

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

Problem

The quadratic equation x2+2(k−1)x+(k2−1)=0x^2 + 2(k-1)x + (k^2-1)=0 has two equal real roots. Find the value of kk. (a) 22 (b) 11 (c) 33 (d) 00

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