Question

Complete the square to form a true equation.

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

Answer 1

If you would like to complete the square to form a true equation, you can do this using the following steps:

x^2 - 4 * x + ? = (x - ?)^2
x^2 - 4 * x + 4 = (x - 2)^2

The correct result is x^2 - 4 * x + 4 = (x - 2)^2.