simplify (3a-4b^3)^3 Can anyone help me? Should it be 27a^3-64b^9?
Mathway has some crazy answer...

simplify (3a-4b^3)^3 Can anyone help me? Should it be 27a^3-64b^9?
Mathway has some crazy answer...

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no
it is
27a^3 - 72a^2b^3 - 96ab^6 + 64b^9

how did you get the middle part? i don't get it.

did you use foil and do the equation times itself then foil again for the 3rd time?

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