Evaluate
\sqrt{14}+7\approx 10.741657387
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\left(\sqrt{7}\right)^{2}+\sqrt{7}\sqrt{2}
Use the distributive property to multiply \sqrt{7} by \sqrt{7}+\sqrt{2}.
7+\sqrt{7}\sqrt{2}
The square of \sqrt{7} is 7.
7+\sqrt{14}
To multiply \sqrt{7} and \sqrt{2}, multiply the numbers under the square root.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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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