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
@mathmate @aum

Answer 1

You add (b/2a)^2 to both sides where b is the coefficient of the x term and a is the coefficient of the x^2 term.

Answer 2

wait I'm confused

Answer 3

b = -8, a = 1

Answer 4

so it's 16?

Answer 5

Yes.

Answer 6

really...yes!! :) thxxx!!

Answer 7

you are welcome.