SOLUTION: How do I factor this polynomial : 5x - 15x^3?

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Question 708520: How do I factor this polynomial : 5x - 15x^3?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Try factoring every term and look for the factor set that is common to all the terms.

5x+-+15x%5E3
= 5%2Ax+-+3%2A5%2Ax%2Ax%2Ax

WHAT do you see that is common to both terms? It's the "5x".

= 5%2Ax+-+5%2Ax%2A%283x%5E2%29
= 5x%281-3x%5E2%29