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OpenStudy (anonymous):
Refresh my memory: What is the formula for the difference of two squares? Two cubes?
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OpenStudy (hoblos):
a^2 - b^2 = (a-b)(a+b)
OpenStudy (anonymous):
Yes, and the difference of two cubes??
OpenStudy (hoblos):
a^3 - b^3 = (a-b)(a^2 +ab + b^2)
OpenStudy (anonymous):
Thanks! @hoblos
OpenStudy (hoblos):
yw :)
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