Evaluate
\frac{25}{7}\approx 3.571428571
Factor
\frac{5 ^ {2}}{7} = 3\frac{4}{7} = 3.5714285714285716
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\frac{5}{0.5+1\times 0.9}
Multiply 5 and 0.1 to get 0.5.
\frac{5}{0.5+0.9}
Multiply 1 and 0.9 to get 0.9.
\frac{5}{1.4}
Add 0.5 and 0.9 to get 1.4.
\frac{50}{14}
Expand \frac{5}{1.4} by multiplying both numerator and the denominator by 10.
\frac{25}{7}
Reduce the fraction \frac{50}{14} to lowest terms by extracting and canceling out 2.
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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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}