Factor
\left(x-3\right)\left(a+b\right)
Evaluate
\left(x-3\right)\left(a+b\right)
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a\left(x-3\right)+b\left(x-3\right)
Do the grouping ax-3a+bx-3b=\left(ax-3a\right)+\left(bx-3b\right), and factor out a in the first and b in the second group.
\left(x-3\right)\left(a+b\right)
Factor out common term x-3 by using distributive property.
Examples
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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