Evaluate
40
Factor
2^{3}\times 5
Share
Copied to clipboard
-8\left(-1\right)^{2002}-\frac{12}{-\left(\frac{1}{2}\right)^{2}}
Calculate 2 to the power of 3 and get 8.
-8-\frac{12}{-\left(\frac{1}{2}\right)^{2}}
Calculate -1 to the power of 2002 and get 1.
-8-\frac{12}{-\frac{1}{4}}
Calculate \frac{1}{2} to the power of 2 and get \frac{1}{4}.
-8-12\left(-4\right)
Divide 12 by -\frac{1}{4} by multiplying 12 by the reciprocal of -\frac{1}{4}.
-8-\left(-48\right)
Multiply 12 and -4 to get -48.
-8+48
The opposite of -48 is 48.
40
Add -8 and 48 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}