Entry Exam Category: High School Equivalency Exams
Course: General Education Development (GED)
Exam: GED Math practice test
Practice Question
Multiply: (x^2 - 3)(x^5 + 2x^3)
Answer Choices
- A: x^7,-3x^5,-6x^3
- B: x^10,2x^5,-6x^3
- C: 5x^5,2x^6,-6x^3
- D: x^7,2x^5,-6
Correct Answer: A
Rationale: Distribute: x^2 * x^5 + x^2 * 2x^3 - 3 * x^5 - 3 * 2x^3 = x^7 + 2x^5 - 3x^5 - 6x^3 = x^7 - x^5 - 6x^3. Terms: x^7, -3x^5, 2x^5, -6x^3. Option A matches. Thus, the correct answer is x^7,-3x^5,-6x^3.