Evaluate
-96\sqrt{2}\approx -135.764501988
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6\sqrt{2}\left(-4^{2}\right)
Factor 72=6^{2}\times 2. Rewrite the square root of the product \sqrt{6^{2}\times 2} as the product of square roots \sqrt{6^{2}}\sqrt{2}. Take the square root of 6^{2}.
6\sqrt{2}\left(-16\right)
Calculate 4 to the power of 2 and get 16.
-96\sqrt{2}
Multiply 6 and -16 to get -96.
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