Question

find the value of k for which the roots of the quadratic equation 2x²+kx+8=0 will have equal value ​

Answer 1

Answer:

the given equation has real roots, a = 2 , b = k and c = 8. D = 0 b2 - 4ac = 0 k2 - 4 * 2 *8 = 0 k2 = 64 k = ± √64 ∴k = ± 8.

Answer 2

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