Question

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

Answer 1

Step-by-step explanation:

k = -12/x

is the correct answer

Answer 2

Answer:

If 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.