Question 1 (ID=27652) Using the key above as a guide, what is the result of the operation in the model below? A: negative 13 B: negative 5 C: 5 D: 13

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.