Question

complete the square: x^2-4x+2=0

i need detailed steps showing how to solve.. im lost on this one

Answer 1

x^2-4x+2 = 0

x^2 - 4x = -2

x^2 - 4x + (4/2)^2 - (4/2)^2 = -2

(x - 2)^2 - (2)^2 = -2

(x-2)^2 - 4 = -2

(x - 2)^2 -4 + 2 = 0

(x-2)^2 - 2 = 0