Advanced MathEasy–MediumCubing a monomial
Advanced Math practice question
Which of the following is equivalent to (2x)³?
- A. 8x³Correct
- B. 2x³
- C. 6x³
- D. 8x
Answer: A. 8x³
(2x)³ = 2³ · x³ = 8x³.
Why the other answers are wrong
- B. 2x³
- Only the x was cubed.
- C. 6x³
- 2 × 3 instead of 2³.
- D. 8x
- Only the 2 was cubed.
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For x ≠ 0, which expression is equivalent to (x² + 3x) / x? - Easy–Medium
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