Digital PSAT Math Practice Question 114: Answer and Explanation
Question: 114
Solve for 
- A.
- B.
- C.
- D.
Correct Answer: D
Explanation:
(D) First, multiply by 8 to avoid dealing with fractions:
Next, use the quadratic formula:
This still doesn't match any of the answer choices. All of the answer choices have a fraction factored out of them. We can factor 
out of our expression to get the answer:
Choice (D) is correct.
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