Evaluate
-60\sqrt{3}\approx -103.923048454
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20\left(-3\sqrt{3}\right)
Factor 27=3^{2}\times 3. Rewrite the square root of the product \sqrt{3^{2}\times 3} as the product of square roots \sqrt{3^{2}}\sqrt{3}. Take the square root of 3^{2}.
-20\times 3\sqrt{3}
Multiply 20 and -1 to get -20.
-60\sqrt{3}
Multiply -20 and 3 to get -60.
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