Whats 2+2 if you have 2 pencials A 4 B 4 C 4 D 8

Your maths is very weak try yourself this would improve your skills don't depend on others

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.