6 + ( 4 - [ ( 17 - ( 9 \cdot 4 ) ] + 3 ) - 5
Evaluate
21
Factor
3\times 7
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6+4-\left(17-36+3\right)-5
Multiply 9 and 4 to get 36.
6+4-\left(-19+3\right)-5
Subtract 36 from 17 to get -19.
6+4-\left(-16\right)-5
Add -19 and 3 to get -16.
6+4+16-5
The opposite of -16 is 16.
6+20-5
Add 4 and 16 to get 20.
26-5
Add 6 and 20 to get 26.
21
Subtract 5 from 26 to get 21.
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}