Factor
\left(7a-5n\right)\left(n+b\right)
Evaluate
\left(7a-5n\right)\left(n+b\right)
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7a\left(n+b\right)-5n\left(n+b\right)
Do the grouping 7ab+7an-5nb-5n^{2}=\left(7ab+7an\right)+\left(-5nb-5n^{2}\right), and factor out 7a in the first and -5n in the second group.
\left(n+b\right)\left(7a-5n\right)
Factor out common term n+b by using distributive property.
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