Evaluate
16
Factor
2^{4}
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\frac{4\times 2\sqrt{10}}{5}\sqrt{10}
Factor 40=2^{2}\times 10. Rewrite the square root of the product \sqrt{2^{2}\times 10} as the product of square roots \sqrt{2^{2}}\sqrt{10}. Take the square root of 2^{2}.
\frac{8\sqrt{10}}{5}\sqrt{10}
Multiply 4 and 2 to get 8.
\frac{8\sqrt{10}\sqrt{10}}{5}
Express \frac{8\sqrt{10}}{5}\sqrt{10} as a single fraction.
\frac{8\times 10}{5}
Multiply \sqrt{10} and \sqrt{10} to get 10.
\frac{80}{5}
Multiply 8 and 10 to get 80.
16
Divide 80 by 5 to get 16.
Examples
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y = 3x + 4
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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