Solve for x: x² - 2x - 3 = 0
Difficulty: Medium
About this MCQ
Medium SAT item. Correct choice: A. x = -1 or x = 3.
- A. x = -1 or x = 3 ✓
- B. x = 0 or x = 2
Why not B: “x = 0 or x = 2” is not x = -1 or x = 3.
- C. x = 1 or x = -3
Why not C: “x = 1 or x = -3” is not x = -1 or x = 3.
- D. x = -1 or x = 4
Why not D: “x = -1 or x = 4” is not x = -1 or x = 3.
Correct answer
A. x = -1 or x = 3
Explanation
x = -1 or x = 3 (option A) is the accepted answer to “Solve for x: x² - 2x - 3 = 0”. Option B (x = 0 or x = 2) is a different value from x = -1 or x = 3. Option C (x = 1 or x = -3) is a different value from x = -1 or x = 3. Option D (x = -1 or x = 4) is a different value from x = -1 or x = 3. Keep x = -1 or x = 3 as the SAT fact for this stem.
Source: Original practice question, MCQsHub
Tags: SAT, Math, Algebra, American Exams
Submitted by: MCQsHub Editorial
Related MCQs
- What is the distance between the points (4, -5) and (-2, 3)?
- What is the slope of a line passing through the points (-6, -8) and (-3, -11)?
- A rectangle has a length of 24 and a width of 10. What is its area?
- What is the value of 5^5 × 5^2?
- What is the distance between the points (-2, 5) and (-5, 1)?
- What is the slope of a line passing through the points (4, 2) and (6, -6)?