Digital PSAT Math Practice Question 225: Answer and Explanation
Question: 225
When x > 0, which of these expressions is equivalent to 
?
- A. 4x
- B. 7x
- C.
- D. x2 - 12
Correct Answer: A
Explanation:
(A) Dividing by a fraction is the same as multiplying by its reciprocal, so 
and 
. Therefore,
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