3 d r + r - 3 d s - s
Factor
\left(r-s\right)\left(3d+1\right)
Evaluate
\left(r-s\right)\left(3d+1\right)
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r\left(3d+1\right)-s\left(3d+1\right)
Do the grouping 3dr+r-3ds-s=\left(3dr+r\right)+\left(-3ds-s\right), and factor out r in the first and -s in the second group.
\left(3d+1\right)\left(r-s\right)
Factor out common term 3d+1 by using distributive property.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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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