An Exponential function is written as FX equals a multiplied by BX where the coefficient is a exponential function is written as FX equals a multiplied by BX where the coefficient a is a Constant the base B is positive but not equal to one and the exponent X is white

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.