Question

Idk how to complete the square. :( Trying to get
x^2-16x+56=y into VERTEX FORM. So far i have x^2-16x=-56 ... Help? :/

Answer 1

add 64 on both sides

Answer 2

Where did you get 64? :/

Answer 3

-16/2 = -8

(-8)^2 = 64

Answer 4

okay. Now i have x^2-16x+64=8
I'm sorry, this is annoying but i don't know what to do next.

Answer 5

(x - 8)^2 = 8

Answer 6

Thank you. (x-8)^2=8 is vertex form?

Answer 7

(x-8)^2 - 8 = 0