Question

find the value(s) of k,if quadratic equation
$3x ^{2} - k \sqrt{3 \times + 4 = 0}$
has equal roots

Answer 1

As it is having equal roots

b²- 4ac=0

(k√3)²- 4x3x4 = 0

3k²=48. k²= 16

therefore k=±4