SSAT Math Question 217: Answer and Explanation

Home > SSAT Test > SSAT Math Practice Tests

Test Information

Question: 217

1.

  • A. (x2)
  • B. x24
  • C. x5
  • D. x2

Correct Answer: A

Explanation:

The answer is A

To simplify a cube root, find any cubes and remove them. x3 appears twice within x8, so you can pull out x2. There will still be two x values under the root, so leave x2 there: (x2).

You can expand the expressions out. x8 becomes (x)(x)(x)(x)(x)(x)(x)(x). As we are dealing with cubes, combine the x terms to (x3)(x3)(x2). Therefore, there are two cubes to remove from the cube root (each one becoming x), and x2 is left behind. Outside of the radica

Previous       Next