a^2 (b-c) -16b^2 (b-c) i tried to combine like this a^2b - a^2c - 16b^3 - 16b^2 c i don't think this is right.
Last edited by CaptainBlack; Jun 28th 2007 at 02:26 PM.
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Originally Posted by beautiful a^2 (b-c) -16b^2 (b-c) i tried to combine like this a^2b - a^2c - 16b^3 - 16b^2 c i don't think this is right. I don't know what you are trying to do but multiplying out gives: a^2b - a^2c - 16b^3 + 16b^2 c RonL
If you want to factorize the expression, then here it is: $\displaystyle a^2(b-c)-16b^2(b-c)=(b-c)(a^2-16b^2)=(b-c)(a-4b)(a+4b)$
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