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3+7x-2x^{2}
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3+7x-2x^{2}
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6x^{2}-4x+10-8x^{2}+11x-7
To find the opposite of 8x^{2}-11x+7, find the opposite of each term.
-2x^{2}-4x+10+11x-7
Combine 6x^{2} and -8x^{2} to get -2x^{2}.
-2x^{2}+7x+10-7
Combine -4x and 11x to get 7x.
-2x^{2}+7x+3
Subtract 7 from 10 to get 3.
6x^{2}-4x+10-8x^{2}+11x-7
To find the opposite of 8x^{2}-11x+7, find the opposite of each term.
-2x^{2}-4x+10+11x-7
Combine 6x^{2} and -8x^{2} to get -2x^{2}.
-2x^{2}+7x+10-7
Combine -4x and 11x to get 7x.
-2x^{2}+7x+3
Subtract 7 from 10 to get 3.
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