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3z^{2}-19z+18
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3z^{2}-19z+18
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10z^{2}-10z+11-7z^{2}-9z+7
To find the opposite of 7z^{2}+9z-7, find the opposite of each term.
3z^{2}-10z+11-9z+7
Combine 10z^{2} and -7z^{2} to get 3z^{2}.
3z^{2}-19z+11+7
Combine -10z and -9z to get -19z.
3z^{2}-19z+18
Add 11 and 7 to get 18.
10z^{2}-10z+11-7z^{2}-9z+7
To find the opposite of 7z^{2}+9z-7, find the opposite of each term.
3z^{2}-10z+11-9z+7
Combine 10z^{2} and -7z^{2} to get 3z^{2}.
3z^{2}-19z+11+7
Combine -10z and -9z to get -19z.
3z^{2}-19z+18
Add 11 and 7 to get 18.
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Limits
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