Question

What value is added to both sides of the equation x2 − 8x = −10 in order to solve by completing the square? −8 16 −4 4

Answer 1

16

Explanation:

to complete the square we add (b/2) ^2 to each side where b is the coefficient of the x term

(-8/2) ^2 = (-4)^2 = 16

add 16 to each side