Question

(iv) If the roots are equal of the quadratic equation 4x2 + 6kx +9=0, the value ofk is
(a) 2 or 0 (b)-2 or 0 (c) 2 or-2 (d) only o​

Answer 1

Answer:

The equation has no real roots

Step-by-step explanation:

The roots of the quadratic equation is

4x^2 + 6kx + 9 = 0

By formula method

-b +- square root of b square -4ac /2a

a= 4 b = 6 c = 9

(-6+ - square root of (6)^2-4×4×9)/2×4

(-6+- square root of (36-144))/ 8

(-6 +- square root of(-108))/ 8

None of the options satisfies

So answer is none of above