Entry Exam Category: High School Equivalency Exams
Course: General Education Development (GED)
Exam: GED Math practice test

Practice Question

Factor completely: b^2 + 3b - 4

Answer Choices

  • A: (b + 4)(b - 1)
  • B: (b - 2)(b - 3)
  • C: (b + 1)(b + 2)
  • D: (b + 3)(b - 1)

Correct Answer: A

Rationale: Find factors of -4 that add to 3: 4 and -1. Thus, b^2 + 3b - 4 = (b + 4)(b - 1). Verify: (b + 4)(b - 1) = b^2 - b + 4b - 4 = b^2 + 3b - 4. Thus, the correct answer is (b + 4)(b - 1).

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