Online Course Discussion Forum

IIB Algebra 1.22

 
 
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IIB Algebra 1.22
by Daniel Zhang - Saturday, 11 May 2024, 1:36 PM
 

The question is: Factor x38y3z36xyz�3−8�3−�3−6���.


I tried expanding out (x-2y-z)^3 but it didn't seem to help...what else could I try?

 
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Re: IIB Algebra 1.22
by Dr. Kevin Wang - Sunday, 12 May 2024, 11:48 PM
 

Try using one of the formulas given at the beginning of the chapter.  Only a few of them involve cubes, so there are not many choices to try out.

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Re: IIB Algebra 1.22
by Daniel Zhang - Monday, 13 May 2024, 10:15 AM
 

Yeah, I figured it out. I kind of had a brain fart :P  Thank you so much!!