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September 3, 2015

Homework Help: math2

Posted by margie on Sunday, January 28, 2007 at 11:41am.

5y^8-125
*you have to factor completley

easy. Take out the five:
5(y^8-25)

Now, isnt y8 the same as y4 )2 ? That is a square, so you have that y4 squared minus another perfect square? That factor as the difference of two squares. After doing that, you may have another difference of squares to factor.

So would it be 5(y^2-5)

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