If x = 4, what is x cubed?

If x = 4, what is x cubed?

• A. 12
• B. 16
• C. 64
• D. 256

Answer: (C)

Multiplying a number by itself three times is what cubed means: x^3 = x × x × x. If x equals 4, then 4 × 4 × 4 equals 16 × 4, which is 64. So x cubed is 64. For context, 4 squared is 16, and 4 to the fourth would be 256, so those aren’t the result here.

Multiplying a number by itself three times is what cubed means: x^3 = x × x × x. If x equals 4, then 4 × 4 × 4 equals 16 × 4, which is 64. So x cubed is 64. For context, 4 squared is 16, and 4 to the fourth would be 256, so those aren’t the result here.