Evaluate
10a\left(2a-b\right)
Factor
10a\left(2a-b\right)
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5a^{2}\times 4-10ab
Multiply a and a to get a^{2}.
20a^{2}-10ab
Multiply 5 and 4 to get 20.
10\left(2aa-ab\right)
Factor out 10.
a\left(2a-b\right)
Consider 2a^{2}-ab. Factor out a.
10a\left(2a-b\right)
Rewrite the complete factored expression.
Examples
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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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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