SOLUTION: solve by factoring {{{x^2 - 7x - 12 = 6}}} isn't the answer = x- 9 ?

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Question 34177: solve by factoring
x%5E2+-+7x+-+12+=+6
isn't the answer = x- 9 ?
Answer by elephantsize(7) About Me  (Show Source):
You can put this solution on YOUR website!
x^2 - 7x - 12 = 6
=>x^2 - 7x - 18 = 0
=>x^2 - 9x + 2x - 18 = 0
=>x(x-9) + 2(x-9) = 0
=>(x+2)(x-9) = 0
Here there are 2 possibilities ----
1) x+2 = 0/(x-9)
x+2 = 0
x= -2

OR

2) x-9 = 0/(x+2)
x-9 = 0
x = 9
So the answer can be either x = -2 OR x = 9