Question

Check my work:
(7+x)(x^2+6x-8)
Combine like terms to -1+7x+x^2 then what?

Answer 1

how did you get 7x ??
first step is to foil

Answer 2

distribute 2nd parentheses by first one

Answer 3

6x+x is how I got 7x.

Answer 4

=(7+x)(x2+6x+−8)
=(7)(x2)+(7)(6x)+(7)(−8)+(x)(x2)+(x)(6x)+(x)(−8)
=7x2+42x−56+x3+6x2−8x
=x3+13x2+34x−56

Answer 5

Okay so foil each?

Answer 6

yep first multiply 2nd parentheses by 7