Evaluate
9.2
Factor
\frac{2 \cdot 23}{5} = 9\frac{1}{5} = 9.2
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18.8+8.8-7.2-2-9.2
Add 6 and 12.8 to get 18.8.
27.6-7.2-2-9.2
Add 18.8 and 8.8 to get 27.6.
20.4-2-9.2
Subtract 7.2 from 27.6 to get 20.4.
18.4-9.2
Subtract 2 from 20.4 to get 18.4.
9.2
Subtract 9.2 from 18.4 to get 9.2.
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}