Factor
\left(a+d\right)\left(b+c\right)
Evaluate
\left(a+d\right)\left(b+c\right)
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b\left(a+d\right)+c\left(a+d\right)
Do the grouping ab+bd+ac+cd=\left(ab+bd\right)+\left(ac+cd\right), and factor out b in the first and c in the second group.
\left(a+d\right)\left(b+c\right)
Factor out common term a+d by using distributive property.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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Limits
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