Posted by Anonymous on Thursday, February 3, 2011 at 9:07pm.
yes
If this is your problem
(5x^4 + 3x^2 - 2x) - (-5x^4 - 3x^2 + 9x)
Answer is
10x^4 + 6x^2 - 11x
thanks
If they're not in parenthesis, the answer is 7x
Write out exactly how it is in the book.
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