SOLUTION: 27a^3 - 343b^3

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Question 181812: 27a^3 - 343b^3


Answer by Mathtut(3670)   (Show Source): You can put this solution on YOUR website!
lets rewrite this
:
now we see this is the difference of cubes
:
of the form in our case a is 3a and b is 7b
:
just plugging in to the difference of cubes formula

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