SAT Math Multiple Choice Question 433: Answer and Explanation

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Test Information

Question: 433

13. Which of the following expressions is equivalent to

  • A.
  • B.
  • C.
  • D.

Correct Answer: C

Explanation:

C

Difficulty: Medium

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.

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