Please help me factor the following: 81y^4-w^4y^4 Thanks in advance for your help.
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Stroodle, many thanks for your quick response and help!
Originally Posted by Stroodle Stroodle, In trying to understand how this is factored, how did you get to the second step, please? Could you break that down and explain it a little further for me, please? Thank you in advance for your help.
Last edited by dkpeppard; Dec 17th 2009 at 07:30 AM. Reason: updated equation referenced
Anyone else is welcome to jump in to and explain as well. Thanks in advance.
this is a difference of squares if you FOIL this the middle terms will cancel out leaving
Originally Posted by bigwave this is a difference of squares if you FOIL this the middle terms will cancel out leaving Thank you, Bigwave.
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