Evaluate
35\sqrt{2}\approx 49.497474683
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\sqrt{5}\sqrt{5}\sqrt{98}
Factor 490=5\times 98. Rewrite the square root of the product \sqrt{5\times 98} as the product of square roots \sqrt{5}\sqrt{98}.
5\sqrt{98}
Multiply \sqrt{5} and \sqrt{5} to get 5.
5\times 7\sqrt{2}
Factor 98=7^{2}\times 2. Rewrite the square root of the product \sqrt{7^{2}\times 2} as the product of square roots \sqrt{7^{2}}\sqrt{2}. Take the square root of 7^{2}.
35\sqrt{2}
Multiply 5 and 7 to get 35.
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