Evaluate
2\sqrt{15}+9999999987\approx 9999999994.745965958
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10000000000+\sqrt{60}-\frac{400}{50}-5
Calculate 100 to the power of 5 and get 10000000000.
10000000000+2\sqrt{15}-\frac{400}{50}-5
Factor 60=2^{2}\times 15. Rewrite the square root of the product \sqrt{2^{2}\times 15} as the product of square roots \sqrt{2^{2}}\sqrt{15}. Take the square root of 2^{2}.
10000000000+2\sqrt{15}-8-5
Divide 400 by 50 to get 8.
9999999992+2\sqrt{15}-5
Subtract 8 from 10000000000 to get 9999999992.
9999999987+2\sqrt{15}
Subtract 5 from 9999999992 to get 9999999987.
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