Evaluate
5\left(xy+4\right)
Factor
5\left(xy+4\right)
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-7x^{2}y^{2}-4xy+5+15+9xy+7x^{2}y^{2}
Combine 3x^{2}y^{2} and -10x^{2}y^{2} to get -7x^{2}y^{2}.
-7x^{2}y^{2}-4xy+20+9xy+7x^{2}y^{2}
Add 5 and 15 to get 20.
-7x^{2}y^{2}+5xy+20+7x^{2}y^{2}
Combine -4xy and 9xy to get 5xy.
5xy+20
Combine -7x^{2}y^{2} and 7x^{2}y^{2} to get 0.
5xy+20
Multiply and combine like terms.
5\left(xy+4\right)
Factor out 5.
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