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April 18, 2015

April 18, 2015

Posted by **Joe** on Tuesday, July 22, 2008 at 6:51pm.

[(2x+7)^6 x 5(x-2)^4] + [(x-2)^5 x 6(2x+7)^5 x 2]

If you can also explain how to do it step by step, that would be VERY appreciated. THANK YOU SO MUCH.

- Precalc -
**Quidditch**, Tuesday, July 22, 2008 at 9:38pmI changed the variable to y to avoid confusion with the x used for multiplication.

[(2y+7)^6 x 5(y-2)^4] + [(y-2)^5 x 6(2y+7)^5 x 2]

(2y+7)^5 and (y-2)^4 are common to both terms.

bring the common factors outside:

=((2y+7)^5)x((y-2)^4)x[(2y+7)+(y-2)x2]

There are 2 terms in the rightmost factor. Combine like items.

- Precalc -
**Quidditch**, Tuesday, July 22, 2008 at 9:51pmOops!

An error on my part!

The last line should be:

=((2y+7)^5)x((y-2)^4)x[5x(2y+7)+6x(y-2)x2]

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