Evaluate
6
Factor
2\times 3
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7-6-1-2-5+8+1-\left(4-1-7\right)
Add -2 and 9 to get 7.
1-1-2-5+8+1-\left(4-1-7\right)
Subtract 6 from 7 to get 1.
-2-5+8+1-\left(4-1-7\right)
Subtract 1 from 1 to get 0.
-7+8+1-\left(4-1-7\right)
Subtract 5 from -2 to get -7.
1+1-\left(4-1-7\right)
Add -7 and 8 to get 1.
2-\left(4-1-7\right)
Add 1 and 1 to get 2.
2-\left(3-7\right)
Subtract 1 from 4 to get 3.
2-\left(-4\right)
Subtract 7 from 3 to get -4.
2+4
The opposite of -4 is 4.
6
Add 2 and 4 to get 6.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
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}