Evaluate
4-207646\sqrt{2}\approx -293651.789372524
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4-2\sqrt{2}\times 47^{3}-10+10
Factor 8=2^{2}\times 2. Rewrite the square root of the product \sqrt{2^{2}\times 2} as the product of square roots \sqrt{2^{2}}\sqrt{2}. Take the square root of 2^{2}.
4-2\sqrt{2}\times 103823-10+10
Calculate 47 to the power of 3 and get 103823.
4-207646\sqrt{2}-10+10
Multiply 2 and 103823 to get 207646.
-6-207646\sqrt{2}+10
Subtract 10 from 4 to get -6.
4-207646\sqrt{2}
Add -6 and 10 to get 4.
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