PSAT Math Multiple-Choice Question 2: Answer and Explanation

Question: 2

In the equation above, what is a possible value of m?

• A. 3
• B. 4
• C. 5
• D. 6

Correct Answer: C

Explanation:

C

The question asks for the value of a variable. Solve for m. To begin to isolate m, square both sides of the equation to get m² + 39 = 64. Subtract 39 from both sides of the equation to get m² = 25. Take the square root of both sides to get m = 5. Therefore, one possible value for m is 5. The correct answer is (C).