Advanced MathEasy–MediumCubing a monomial
Advanced Math practice question
Which expression is equivalent to (2x²)³?
- A. 8x⁶Correct
- B. 6x⁶
- C. 8x⁵
- D. 2x⁶
Answer: A. 8x⁶
Cube both the 2 and the x²: 2³ = 8 and (x²)³ = x⁶.
Why the other answers are wrong
- B. 6x⁶
- 6x⁶ multiplies 2 by 3 instead of cubing it.
- C. 8x⁵
- 8x⁵ adds 2 + 3 for the exponent instead of multiplying.
- D. 2x⁶
- 2x⁶ forgets to cube the 2.
More Advanced Math questions
- Easy–Medium
If f(x) = 2x² − 3, what is f(4)? - Easy–Medium
Which expression is equivalent to (2x³)(3x⁴)? - Easy–Medium
What are the solutions to x² − 16 = 0? - Easy–Medium
Which expression is equivalent to (x + 5)²? - Easy–Medium
For x ≠ 0, which expression is equivalent to (x² + 3x) / x? - Easy–Medium
What are the solutions to the equation 2(x − 3)² − 32 = 0 ?
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