Skip to main content
Evaluate
Tick mark Image

Similar Problems from Web Search

Share

-4\times 2\sqrt{5}+5\sqrt{5}
Factor 20=2^{2}\times 5. Rewrite the square root of the product \sqrt{2^{2}\times 5} as the product of square roots \sqrt{2^{2}}\sqrt{5}. Take the square root of 2^{2}.
-8\sqrt{5}+5\sqrt{5}
Multiply -4 and 2 to get -8.
-3\sqrt{5}
Combine -8\sqrt{5} and 5\sqrt{5} to get -3\sqrt{5}.