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July 26, 2014

Posted by **Anonymous** on Thursday, February 3, 2011 at 7:48pm.

-5x^4-3x^2+9x

_______________

0x^4+x^2+7x

is this right?

- algebra -
**helper**, Thursday, February 3, 2011 at 8:11pmAre you adding these two equations?

If so,

5x^4 + 3x^2 - 2x

-5x^4 - 3x^2 + 9x

-------------------

0 + 0 + 7x

The answer is 7x

- algebra -
**Anonymous**, Thursday, February 3, 2011 at 8:51pmno im subtracting

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