Question

x^2+18x=-7 What value should be added to both sides of the equation?

Answer 1

To complete the square?

Answer 2

yes i think

Answer 3

Alright, take the coefficient of the x term, divide it by 2, and then square it

(18/2)^2=?

Answer 4

9

Answer 5

Yes, but then square it so you get 81

Answer 6

is that it 81

Answer 7

Yes

Answer 8

thanks