SOLUTION: Factor the following polynomial y^3+64

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Question 306995: Factor the following polynomial
y^3+64
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
There is a formula that goes like this:
x%5E3%2By%5E3=+%28x%2By%29%28x%5E2-xy%2By%5E2%29

Using this formula,
y%5E3%2B64=y%5E3+%2B+4%5E3
y%5E3%2B4%5E3=%28y%2B4%29%28y%5E2-4y%2B4%5E2%29
y%5E3%2B4%5E3=%28y%2B4%29%28y%5E2-4y%2B16%29

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Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamonte Springs Campus