Question

Use completing the square to solve (x + 7)(x – 9) = 25 for x
16 must be factored from 18x + 14
x must be factored from 6x^2 + 18x
6 must be factored from 6x^2 + 14
6 must be factored from 6x^2 + 18x

Answer 1

expand this out and see what ya get

Answer 2

I dont remember how

Answer 3

so you factor x first?

Answer 4

you multiple the x with x then x with -9

Answer 5

x^2-9x

Answer 6

and then the second part would be 7x-63