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subtract (x-3x^4+2x^2)-(-x^3+4x^6)

1 Answer

4 votes
The subtraction sign in front of the second set of parenthesis changes the signs on the terms inside those parenthesis. So this could be rewritten as
x-3x^4+2x^2+x^3-4x^6. None of the exponents on the x are the same, so we will just express it in terms of descending powers of x.
-4x^6-3x^4+x^3+2x^2+x. This is also the same as
4x^6+3x^4-x^3-2x^2-x if you don't like to start with a negative. Either one is correct.
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