Question

How can you solve this question?

Answer 1

Exponent 1/2 is the same as square rooting. So your question is the same as √48.

√48 = 4√3 = 4(3^(1/2))

The third option is your answer. 

Answer 2

(16*3)^(1/2)=16^(1/2)*3^(1/2)=4*3^(1/2)