Entry Exam Category: High School Equivalency Exams
Course: HiSET
Exam: HiSET Math Practice Test
Practice Question
Which of the following expressions is equivalent to (4x²)(5x³)?
Answer Choices
- A: 9x⁵
- B: 9x⁶
- C: 20x⁵
- D: 20x⁶
- E: 20x⁹
Correct Answer: C
Rationale: Multiply: (4x²)(5x³) = 4×5 × x²⁺³ = 20x⁵. Options: 9x⁵, 9x⁶, 20x⁶, 20x⁹ incorrect; 20x⁵ correct.