Evaluate
2\sqrt{35}\approx 11.832159566
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\sqrt{140}
Multiply 35 and 4 to get 140.
2\sqrt{35}
Factor 140=2^{2}\times 35. Rewrite the square root of the product \sqrt{2^{2}\times 35} as the product of square roots \sqrt{2^{2}}\sqrt{35}. Take the square root of 2^{2}.
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