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

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

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

_______________

0x^4+x^2+7x

is this right?

Thursday

March 23, 2017
Posted by **Anonymous** on Thursday, February 3, 2011 at 7:48pm.

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

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

_______________

0x^4+x^2+7x

is this right?

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