SOLUTION: solve by factoring: 3x^2-3x=18

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Question 307523: solve by factoring: 3x^2-3x=18
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve by factoring:
3x%5E2-3x+=+18 First subtract 18 from both sides.
3x%5E2-3x-18+=+0 Now factor a 3.
3%28x%5E2-x-6%29+=+0 which means that:
x%5E2-x-6+=+0 Factor this trinomial.
%28x-3%29%28x%2B2%29+=+0 Apply the zero product rule: If a%2Ab+=+0 then either a+=+0 or b+=+0 or both.
x-3+=+0 or x%2B2+=+0 so that...
highlight%28x+=+3%29 or highlight%28x+=+-2%29