Evaluate
-6
Factor
-6
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18-3\left(5\times 4-3\times 4\right)
Multiply 6 and 3 to get 18.
18-3\left(20-3\times 4\right)
Multiply 5 and 4 to get 20.
18-3\left(20-12\right)
Multiply 3 and 4 to get 12.
18-3\times 8
Subtract 12 from 20 to get 8.
18-24
Multiply 3 and 8 to get 24.
-6
Subtract 24 from 18 to get -6.
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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