Evaluate
40
Factor
5\times 2^{3}
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-8\left(-7+3-1.2\times \frac{5}{6}\right)
Calculate -2 to the power of 3 and get -8.
-8\left(-7+3-\frac{6}{5}\times \frac{5}{6}\right)
Convert decimal number 1.2 to fraction \frac{12}{10}. Reduce the fraction \frac{12}{10} to lowest terms by extracting and canceling out 2.
-8\left(-7+3-1\right)
Cancel out \frac{6}{5} and its reciprocal \frac{5}{6}.
-8\left(-7+2\right)
Subtract 1 from 3 to get 2.
-8\left(-5\right)
Add -7 and 2 to get -5.
40
Multiply -8 and -5 to get 40.
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}