Evaluate
2\sqrt{205}\approx 28.635642127
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\sqrt{36+28^{2}}
Calculate 6 to the power of 2 and get 36.
\sqrt{36+784}
Calculate 28 to the power of 2 and get 784.
\sqrt{820}
Add 36 and 784 to get 820.
2\sqrt{205}
Factor 820=2^{2}\times 205. Rewrite the square root of the product \sqrt{2^{2}\times 205} as the product of square roots \sqrt{2^{2}}\sqrt{205}. Take the square root of 2^{2}.
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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