Posted by **TJ** on Friday, November 13, 2009 at 9:32pm.

Divide (x^4-y^4) by (x-y).

Need to show work to help me understand.

Also need to answer without parentheses.

Thanks for any and all help with this one!!

- Math help with Algebra -
**Reiny**, Friday, November 13, 2009 at 9:38pm
(x^4-y^4)

= (x^2 - y^2)(x^2 + y^2)

= (x+y)(x-y)(x^2 + y^2)

so (x^4-y^4)÷(x-y)

= (x+y)(x-y)(x^2 + y^2)÷(x-y)

= (x+y)(x^2 + y^2)

expand this if you don't want the brackets.

- Math help with Algebra -
**TJ**, Friday, November 13, 2009 at 9:40pm
Hey, thanks for your help.

- Math help with Algebra -
**Reiny**, Friday, November 13, 2009 at 9:41pm
welcome

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