Evaluate
26.6
Factor
\frac{7 \cdot 19}{5} = 26\frac{3}{5} = 26.6
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25-2\left(1.3+2.6-4.7\right)
Divide 125 by 5 to get 25.
25-2\left(3.9-4.7\right)
Add 1.3 and 2.6 to get 3.9.
25-2\left(-0.8\right)
Subtract 4.7 from 3.9 to get -0.8.
25-\left(-1.6\right)
Multiply 2 and -0.8 to get -1.6.
25+1.6
The opposite of -1.6 is 1.6.
26.6
Add 25 and 1.6 to get 26.6.
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}