Evaluate
26
Factor
2\times 13
Share
Copied to clipboard
4-\left(-6-\left(7-4\right)-7\right)+6
Add -2 and 9 to get 7.
4-\left(-6-3-7\right)+6
Subtract 4 from 7 to get 3.
4-\left(-9-7\right)+6
Subtract 3 from -6 to get -9.
4-\left(-16\right)+6
Subtract 7 from -9 to get -16.
4+16+6
The opposite of -16 is 16.
20+6
Add 4 and 16 to get 20.
26
Add 20 and 6 to get 26.
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}