Evaluate
\frac{8\sqrt{7}}{3}\approx 7.05533683
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4\times \frac{2\sqrt{7}}{3}
Multiply 2 and 2 to get 4.
\frac{4\times 2\sqrt{7}}{3}
Express 4\times \frac{2\sqrt{7}}{3} as a single fraction.
\frac{8\sqrt{7}}{3}
Multiply 4 and 2 to get 8.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
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Matrix
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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
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Limits
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