Evaluate
-\sqrt{10}-3\approx -6.16227766
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\frac{-6-2\sqrt{10}}{2}
Factor 40=2^{2}\times 10. Rewrite the square root of the product \sqrt{2^{2}\times 10} as the product of square roots \sqrt{2^{2}}\sqrt{10}. Take the square root of 2^{2}.
-3-\sqrt{10}
Divide each term of -6-2\sqrt{10} by 2 to get -3-\sqrt{10}.
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