Factor
\left(a+b\right)\left(c+d\right)
Evaluate
\left(a+b\right)\left(c+d\right)
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a\left(c+d\right)+b\left(c+d\right)
Do the grouping ac+ad+bc+bd=\left(ac+ad\right)+\left(bc+bd\right), and factor out a in the first and b in the second group.
\left(c+d\right)\left(a+b\right)
Factor out common term c+d 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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