Question

Find the cube root of 216 × 729.

• A. 54
• B. 9
• C. 6
• D. 51

Answer 1

The correct option is A

54

216 is the cube of 6 as 216 can be expressed as $(6\times 6\times 6).$

729 is the cube of 9 as 729 can be expressed as $(9\times 9\times 9).$

$\sqrt[3]{36\times 6\times 6}$$\times$$\sqrt[3]{39\times 9\times 9}$

= $6\times 9$

So the cube root of the product will be 6 × 9 = 54.