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5x^{2}-12x-40
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5x^{2}-12x-40
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10x^{2}-12x-5x^{2}-40
To find the opposite of 5x^{2}+40, find the opposite of each term.
5x^{2}-12x-40
Combine 10x^{2} and -5x^{2} to get 5x^{2}.
10x^{2}-12x-5x^{2}-40
To find the opposite of 5x^{2}+40, find the opposite of each term.
5x^{2}-12x-40
Combine 10x^{2} and -5x^{2} to get 5x^{2}.
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