Question

Simplify: The square root of 2 times the square root of 200
A. 101
B. 20
C. 40
D. 100

Answer 1

multiply $\sqrt{2}( \sqrt{200})$ ignoring the square root sign for a moment to get $\sqrt{400}$. Simplify $\sqrt{400}$ to get 20. so, your answer is B.

Answer 2

=19.99999999 so the answer is B.