Evaluate
8
Factor
2^{3}
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11-\left(6-12\right)-\left(-9+3\right)-15
Add -4 and 15 to get 11.
11-\left(-6\right)-\left(-9+3\right)-15
Subtract 12 from 6 to get -6.
11+6-\left(-9+3\right)-15
The opposite of -6 is 6.
17-\left(-9+3\right)-15
Add 11 and 6 to get 17.
17-\left(-6\right)-15
Add -9 and 3 to get -6.
17+6-15
The opposite of -6 is 6.
23-15
Add 17 and 6 to get 23.
8
Subtract 15 from 23 to get 8.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}