Evaluate
2\sqrt{7}+1\approx 6.291502622
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\frac{2+4\sqrt{7}}{2}
Factor 112=4^{2}\times 7. Rewrite the square root of the product \sqrt{4^{2}\times 7} as the product of square roots \sqrt{4^{2}}\sqrt{7}. Take the square root of 4^{2}.
1+2\sqrt{7}
Divide each term of 2+4\sqrt{7} by 2 to get 1+2\sqrt{7}.
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