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5ab-4a+2b^{2}-5b-6c
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5ab-4a+2b^{2}-5b-6c
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5ab+2b^{2}-6c-\left(4a+5b\right)
Combine 3b and 2b to get 5b.
5ab+2b^{2}-6c-4a-5b
To find the opposite of 4a+5b, find the opposite of each term.
5ab+2b^{2}-6c-\left(4a+5b\right)
Combine 3b and 2b to get 5b.
5ab+2b^{2}-6c-4a-5b
To find the opposite of 4a+5b, find the opposite of each term.
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