# algebra

posted by .

im subtracting

5x^4+3x^2-2x
-5x^4-3x^2+9x
_______________
0x^4+x^2+7x

is this right?

• algebra -

yes

• algebra -

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

10x^4 + 6x^2 - 11x

• algebra -

thanks

• algebra -

If they're not in parenthesis, the answer is 7x

Write out exactly how it is in the book.

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