Entry Exam Category: High School Equivalency Exams
Course: HiSET
Exam: HiSET Math Practice Test
Practice Question
What is the product of the two polynomials: (x - 5)(x² - 3x + 6)?
Answer Choices
- A: x³ - 8x² + 21x - 30
- B: x³ - 8x² - 21x - 30
- C: x³ - 8x² - 9x - 30
- D: x³ + 8x² + 21x + 30
- E: x³ + 8x² - 9x + 30
Correct Answer: A
Rationale: Multiply: (x - 5)(x² - 3x + 6) = x(x² - 3x + 6) - 5(x² - 3x + 6) = x³ - 3x² + 6x - 5x² + 15x - 30 = x³ - 8x² + 21x - 30. Options: B, C, D, E incorrect; A correct.