The number 8 is the sum and product of the numbers in the collection of four positive integers (1, 1, 2, 4), since 1 + 1 + 2 + 4 = 8 and 1 x 1 x 2 x 4 = 8. The number 2020 can also be made from a collection of n positive integers, with n > 1, that multiply to 2020 and add to 2020. Determine all possible values for n.

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.