GMAT Question of the Day – DS Exponents – April 21st

What is the value of x?

(1) x^6 = |x|

(2) x^3 = x

[spoiler]E.[/spoiler]

Solution:

Statement (1): This tells us that x must be 1, -1, or 0. No other number will satisfy this equation. Insufficient.

Statement (2): This also tells us that x must be 1, -1, or 0. Insufficient.

Statement (1) + (2): This gives us no new information. Insufficient.