Question

Select the correct answer. Simplify the following radical expression. V20 O A. 275 O B. 52 O C. 45 OD. 1075 Reset

Answer 1

To answer this question, we just need to factorize the 20 with prime numbers.

$20=2\times2\times5$

As we can see

$\sqrt[]{20}=\sqrt[]{2^2\times5}=2\sqrt[]{5}$

Then, the answer is letter A.