Question

4x power to 2 - 8x + 4

Answer 1

$4 {x}^{2} - 8x + 4 \\ = {(2x)}^{2} - 2(2x)(2) + {(2)}^{2} \\ = {(2x - 2)}^{2}$

Answer 2

4x^2 - 8x + 4 = 0
4x^2 - 4x-4x + 4 = 0
4x(x-1) -4(x-1)
(4x-1)(x-1)
x = 1/4 and 1

Hope it helped u:-)