Solve for x: x² + 7x + 0 = 0
Difficulty: Medium
About this MCQ
Medium SAT item. Correct choice: C. x = 0 or x = -7.
- A. x = 1 or x = -8
Why not A: “x = 1 or x = -8” is not x = 0 or x = -7.
- B. x = 0 or x = 7
Why not B: “x = 0 or x = 7” is not x = 0 or x = -7.
- C. x = 0 or x = -7 ✓
- D. x = 0 or x = -6
Why not D: “x = 0 or x = -6” is not x = 0 or x = -7.
Correct answer
C. x = 0 or x = -7
Explanation
x = 0 or x = -7 (option C) is the accepted answer to “Solve for x: x² + 7x + 0 = 0”. Option A (x = 1 or x = -8) is a different value from x = 0 or x = -7. Option B (x = 0 or x = 7) is a different value from x = 0 or x = -7. Option D (x = 0 or x = -6) is a different value from x = 0 or x = -7. Keep x = 0 or x = -7 as the SAT fact for this stem.
Source: Original practice question, MCQsHub
Tags: SAT, Math, Algebra, American Exams
Submitted by: MCQsHub Editorial
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