Entry Exam Category: High School Equivalency Exams
Course: General Education Development (GED)
Exam: GED Math practice test
Practice Question
Factor the expression completely: 45bcx - 10ax
Answer Choices
- A: 5x(9bc - 2a)
- B: 5(9bc - 2a)
- C: x(45bc - 10a)
- D: 5x(9bc + 2a)
Correct Answer: A
Rationale: Factor out the GCF: 45bcx - 10ax = 5x(9bc - 2a). Verify: 5x * 9bc = 45bcx, 5x * -2a = -10ax. Option D has an incorrect sign. Thus, the correct answer is 5x(9bc - 2a).