Evaluate
12-3r-12r^{2}
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12-3r-12r^{2}
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-3r^{2}+8r+9-9r^{2}-11r+3
To find the opposite of 9r^{2}+11r-3, find the opposite of each term.
-12r^{2}+8r+9-11r+3
Combine -3r^{2} and -9r^{2} to get -12r^{2}.
-12r^{2}-3r+9+3
Combine 8r and -11r to get -3r.
-12r^{2}-3r+12
Add 9 and 3 to get 12.
-3r^{2}+8r+9-9r^{2}-11r+3
To find the opposite of 9r^{2}+11r-3, find the opposite of each term.
-12r^{2}+8r+9-11r+3
Combine -3r^{2} and -9r^{2} to get -12r^{2}.
-12r^{2}-3r+9+3
Combine 8r and -11r to get -3r.
-12r^{2}-3r+12
Add 9 and 3 to get 12.
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Limits
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