Question

If x3 = 216, what is the value of x? a. 6b. 4c. 9d. 3

Answer 1

6 (option A)

Explanation:

x³ = 216

cube root both sides:

$\begin{gathered} \sqrt[3]{x^3}\text{ = }\sqrt[3]{216} \\ x\text{ = }\sqrt[3]{216} \end{gathered}$$\begin{gathered} x\text{ = }\sqrt[3]{(6)^3} \\ x\text{ = 6 (option A)} \end{gathered}$