Thread: Don't know how to factor this
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Old November 10th, 2008, 06:22 AM
Chop Suey Chop Suey is offline
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You can go a little further. What you have is a difference of 2 cubes:
(a^3 - b^3) = (a-b)(a^2+ab+b^2)

In the future, if you run into a sum of 2 cubes:
(a^3+b^3)=(a+b)(a^2-ab+b^2)
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