Factor
\left(x-4y\right)\left(x+my\right)
Evaluate
\left(x-4y\right)\left(x+my\right)
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x\left(x+my\right)-4y\left(x+my\right)
Do the grouping x^{2}+mxy-4xy-4my^{2}=\left(x^{2}+mxy\right)+\left(-4xy-4my^{2}\right), and factor out x in the first and -4y in the second group.
\left(x+my\right)\left(x-4y\right)
Factor out common term x+my by using distributive property.
Examples
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{ 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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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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