SAT Math Multiple Choice Practice Question 162: Answer and Explanation

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Question: 162

8. The solution set to the equation x2 = x is

A. {0}
B. {1}
C. {0, 1}
D. {-1, 0}
E. {-1, 1}

Correct Answer: C

Explanation:

C. If you plug in the given numbers, you see that 0 and 1 both work, but -1 doesn't.

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