Evaluate
-82
Factor
-82
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-2\left(3\times 7-\left(6-11\right)\times 4\right)
Subtract 4 from 11 to get 7.
-2\left(21-\left(6-11\right)\times 4\right)
Multiply 3 and 7 to get 21.
-2\left(21-\left(-5\times 4\right)\right)
Subtract 11 from 6 to get -5.
-2\left(21-\left(-20\right)\right)
Multiply -5 and 4 to get -20.
-2\left(21+20\right)
The opposite of -20 is 20.
-2\times 41
Add 21 and 20 to get 41.
-82
Multiply -2 and 41 to get -82.
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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