Evaluate
3-\sqrt{14}\approx -0.741657387
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\frac{-6+2\sqrt{14}}{-2}
Factor 56=2^{2}\times 14. Rewrite the square root of the product \sqrt{2^{2}\times 14} as the product of square roots \sqrt{2^{2}}\sqrt{14}. Take the square root of 2^{2}.
3-\sqrt{14}
Divide each term of -6+2\sqrt{14} by -2 to get 3-\sqrt{14}.
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