Question

complete the square.
x^2-4x=0

Answer 1

(x-2)^2 = 4

Answer 2

Take half of the coefficient of the x term and square it.
The coefficient of the x term is -4.
Half of -4 is -2.
The square of -2 is 4.
Now add 4 to both sides.
x^2 - 4x + 4 = 0 + 4
(x - 2)^2 = 4

Answer 3

^^^so hard to explain that on here...good job

Answer 4

thanks