SOLUTION: I need help with this expression: factor the expression: m to the third-27n to the third thanks

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Question 264013: I need help with this expression:
factor the expression:
m to the third-27n to the third thanks

Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
we start with the following
m%5E3-%2827n%29%5E3
step 1 - this is a difference of cubes so we rewrite
%28%28m%29%5E3-%283n%29%5E3%29
step 2 - factor the difference of cubes as
%28m-3n%29%28m%5E2+%2B+3mn+%2B+9n%5E2%29