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-3\left(-12+5\times 3\right)-\frac{\left(4-5\right)\left(12-8\right)}{4}+10
Subtract 6 from 3 to get -3.
-3\left(-12+15\right)-\frac{\left(4-5\right)\left(12-8\right)}{4}+10
Multiply 5 and 3 to get 15.
-3\times 3-\frac{\left(4-5\right)\left(12-8\right)}{4}+10
Add -12 and 15 to get 3.
-9-\frac{\left(4-5\right)\left(12-8\right)}{4}+10
Multiply -3 and 3 to get -9.
-9-\frac{-\left(12-8\right)}{4}+10
Subtract 5 from 4 to get -1.
-9-\frac{-4}{4}+10
Subtract 8 from 12 to get 4.
-9-\left(-1\right)+10
Divide -4 by 4 to get -1.
-9+1+10
The opposite of -1 is 1.
-8+10
Add -9 and 1 to get -8.
2
Add -8 and 10 to get 2.
Examples
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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
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}