Evaluate
0.25
Factor
\frac{1}{2 ^ {2}} = 0.25
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0.15\times 25-0.5\left(-5\right)-6
Calculate -5 to the power of 2 and get 25.
3.75-0.5\left(-5\right)-6
Multiply 0.15 and 25 to get 3.75.
3.75-\left(-2.5\right)-6
Multiply 0.5 and -5 to get -2.5.
3.75+2.5-6
The opposite of -2.5 is 2.5.
6.25-6
Add 3.75 and 2.5 to get 6.25.
0.25
Subtract 6 from 6.25 to get 0.25.
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}