Factor
\left(a-b\right)\left(x+7\right)
Evaluate
\left(a-b\right)\left(x+7\right)
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7\left(a-b\right)+x\left(a-b\right)
Do the grouping 7a-7b+ax-bx=\left(7a-7b\right)+\left(ax-bx\right), and factor out 7 in the first and x in the second group.
\left(a-b\right)\left(7+x\right)
Factor out common term a-b by using distributive property.
Examples
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Matrix
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Simultaneous equation
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Limits
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