Evaluate
-11
Factor
-11
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-8+-12+8-\left(8+5-3-2\right)+9
Subtract 9 from 1 to get -8.
-8+-4-\left(8+5-3-2\right)+9
Add -12 and 8 to get -4.
-8+-4-\left(13-3-2\right)+9
Add 8 and 5 to get 13.
-8+-4-\left(10-2\right)+9
Subtract 3 from 13 to get 10.
-8-4-8+9
Subtract 2 from 10 to get 8.
-8-12+9
Subtract 8 from -4 to get -12.
-20+9
Subtract 12 from -8 to get -20.
-11
Add -20 and 9 to get -11.
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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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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