Question

(2x)2 -4x -3 =0 what is x​

Answer 1

Answer:

$4 {x}^{2} - 4x - 3 = 0 \\ 4 {x}^{2} - 6x + 2x - 3 = 0 \\ 2x(2x - 3) + 1(2x - 3) = 0 \\ (2x + 1)(2x - 3) = 0$

so,

$2x + 1 \: = 0 \\ x = - \frac{1}{2}$

$2x - 3 = 0 \\ x = \frac{3}{2}$