Question

Find the cube root of -13824.

• A. 24
• B. -24
• C. -34
• D. 34

Answer 1

The correct option is B -24

$-13824=(-)2\times 2\times 2\times 2\times 2\times 2\times 2\times 2\times 2\times 3\times 3\times 3=(-)2^3\times 2^3\times 2^3\times 3^3$
$\therefore$ The cube root of -13824 = $(-)2\times 2\times 2\times 3=-24$