SOLUTION: use the difference of squares pattern to factor the following. (x+6)^2 - (x+9)^2.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: use the difference of squares pattern to factor the following. (x+6)^2 - (x+9)^2.      Log On


   

Question 43820: use the difference of squares pattern to factor the following.
(x+6)^2 - (x+9)^2.
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
From
(x+6)^2 - (x+9)^2
we recognize it is in the pattern
a^2 - b^2 = (a + b)(a - b)
and so we can factor it like that
[(x+6)+(x+9)][(x+6)-(x+9)] =
(2x+15)(-3) =
-6x - 45