SOLUTION: This is on factoring x(x-7) + 9(x-7) I'm doing the distributive thing, and I don't think I'm suppose to. Thanks!

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: This is on factoring x(x-7) + 9(x-7) I'm doing the distributive thing, and I don't think I'm suppose to. Thanks!      Log On


   

Question 77321This question is from textbook Elementary Alegbra
: This is on factoring
x(x-7) + 9(x-7)
I'm doing the distributive thing, and I
don't think I'm suppose to.
Thanks! This question is from textbook Elementary Alegbra

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
If you're trying to combine like terms then:
x%28x-7%29+%2B+9%28x-7%29 Since we have like terms of (x-7) we can combine these terms. If we let y=x-7 we get
xy+%2B+9y Now we can see the combination easier
%28x%2B9%29y
%28x%2B9%29%28x-7%29 replace y with x-7. This is the factored form