SAT Math Multiple Choice Question 433: Answer and Explanation
13. Which of the following expressions is equivalent to
Correct Answer: C
Category: Passport to Advanced Math / Exponents
Strategic Advice: To make the expression look more familiar, rewrite the fraction exponent as a radical. Then, find the largest perfect square for each factor and take its square root (which allows you to bring the square roots outside the radical).
Getting to the Answer:
You could also use prime factorization and look for pairs of factors that are the same in order to bring them outside the radical.