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Posted by **justme** on Tuesday, October 11, 2011 at 5:28pm.

i tried doinhg this but i still dont get it..pls help me...

- math -
**MathMate**, Tuesday, October 11, 2011 at 5:36pmRead the question as:

8/125x^3 + 64y^6

=(2x/5)³+(2y²)³

You will need the standard identity:

a^3+b^3=(a+b)(a^2-ab+b^2)

Give it another try.

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