Evaluate
\sqrt{30}-30\approx -24.522774425
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\sqrt{10}\sqrt{3}-3\left(\sqrt{10}\right)^{2}
Use the distributive property to multiply \sqrt{10} by \sqrt{3}-3\sqrt{10}.
\sqrt{30}-3\left(\sqrt{10}\right)^{2}
To multiply \sqrt{10} and \sqrt{3}, multiply the numbers under the square root.
\sqrt{30}-3\times 10
The square of \sqrt{10} is 10.
\sqrt{30}-30
Multiply -3 and 10 to get -30.
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