Evaluate
-80
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-80
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-\left(-4\right)^{2}\left(\sqrt{5}\right)^{2}
Expand \left(-4\sqrt{5}\right)^{2}.
-16\left(\sqrt{5}\right)^{2}
Calculate -4 to the power of 2 and get 16.
-16\times 5
The square of \sqrt{5} is 5.
-80
Multiply 16 and 5 to get 80.
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\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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