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-b^{2}+14b-15
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-b^{2}+14b-15
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2b^{2}+9b-4-3b^{2}+5b-11
To find the opposite of 3b^{2}-5b+11, find the opposite of each term.
-b^{2}+9b-4+5b-11
Combine 2b^{2} and -3b^{2} to get -b^{2}.
-b^{2}+14b-4-11
Combine 9b and 5b to get 14b.
-b^{2}+14b-15
Subtract 11 from -4 to get -15.
2b^{2}+9b-4-3b^{2}+5b-11
To find the opposite of 3b^{2}-5b+11, find the opposite of each term.
-b^{2}+9b-4+5b-11
Combine 2b^{2} and -3b^{2} to get -b^{2}.
-b^{2}+14b-4-11
Combine 9b and 5b to get 14b.
-b^{2}+14b-15
Subtract 11 from -4 to get -15.
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