SOLUTION: Factor {{{125x^3 + 64y^3}}}

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Question 249469: Factor 125x%5E3+%2B+64y%5E3
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
The cubic root of 125x%5E3+=+5x
The cubic root of 64y%5E3+=+4y
.
You can check by doing repeated multiplication:
5%5E3+=+5+%2A+5+%2A+5+=+25+%2A+5+=+125
x%5E3+=+x+%2A+x+%2A+x
4%5E3+=+4+%2A+4+%2A+4+=+16+%2A+4+=+64
y%5E3+=+y+%2A+y+%2A+y
.