Evaluate
-\frac{13}{2}=-6.5
Factor
-\frac{13}{2} = -6\frac{1}{2} = -6.5
Quiz
Arithmetic
5 problems similar to:
\frac{ { 1 }^{ 5 } + { 5 }^{ 2 } }{ { 25 }^{ 0 } - { 5 }^{ 1 } } =
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\frac{1+5^{2}}{25^{0}-5^{1}}
Calculate 1 to the power of 5 and get 1.
\frac{1+25}{25^{0}-5^{1}}
Calculate 5 to the power of 2 and get 25.
\frac{26}{25^{0}-5^{1}}
Add 1 and 25 to get 26.
\frac{26}{1-5^{1}}
Calculate 25 to the power of 0 and get 1.
\frac{26}{1-5}
Calculate 5 to the power of 1 and get 5.
\frac{26}{-4}
Subtract 5 from 1 to get -4.
-\frac{13}{2}
Reduce the fraction \frac{26}{-4} to lowest terms by extracting and canceling out 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}