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April 20, 2014

Homework Help: math

Posted by laura on Friday, November 14, 2008 at 8:33pm.

please help me out here the problem is combining like terms.
4x^3-3x^3+9x+2x
I got 1x^3+11x
but when i asked a friend they said it would be x^3+11x
could u help me out please.
also could you tell me if this probem is correct as well (10x^3+6x^2+4x) -(8x^3+2x^2-3x)= 18x^3+4x^2+3x+4

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