The additiove opposite is -m+n or n-m.
There is also a multiplicative opposite, which is 1/(m-n)
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mn - 15 + 3m - 5n Rearranging: mn + 3m - 5n - 15 = m(n + 3) - 5(n + 3) = (m - 5)*(n + 3)
2.3
The additive opposite is, but not the multiplicative opposite.The additive opposite is, but not the multiplicative opposite.The additive opposite is, but not the multiplicative opposite.The additive opposite is, but not the multiplicative opposite.
LMN = LM + MN = 3x + (2x +2) = 5x + 2