SOLUTION: Solve quadratic equation by factoring. 2x²+3x-72=x²+2x

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Question 1068551: Solve quadratic equation by factoring.
2x²+3x-72=x²+2x
Found 2 solutions by rothauserc, KMST:
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
2x^2 +3x -72 = x^2 +2x
:
x^2 +x -72 = 0
:
(x+9) * (x-8) = 0
:
x + 9 = 0
x = -9
:
x - 8 = 0
x = 8
:
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x = -9, x = 8
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:

Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
2x%5E2%2B3x-72=x%5E2%2B2x
2x%5E2%2B3x-72-x%5E2-2x=0
x%5E2%2Bx-72=0
%28x%2B9%29%2A%28x-8%29=0
Either x%2B9=0<--->highlight%28x=-9%29
or x-8=0<--->highlight%28x=8%29 .