Question

solve x^2 - 8= -16 by completing the square

Answer 1

Hint add (-8/2)^2 to both sides

Answer 2

is it 7,8?

Answer 3

x^2 - 8x + 16 = -16 + 16
x^2 - 8x + 16 = 0
(x - 4)^2 = 0
x - 4 = 0
x = ?

Answer 4

4,4

Answer 5

x = 4

There's only one solution for x. You do not write 4 twice in this case.

Answer 6

okay. thats my only option on the answer choices