Question

Cube of a negative number is _________ .

• A. Positive
• B. Negative
• C. either positive or negative
• D. Cannot be determined.

Answer 1

The correct option is B Negative

Cube of a negative number is always negative.
$(-a{)}^3=(-a)\times (-a)\times (-a)=-a^3$
Ex:
Taking cube of a negative number -2
$-2^3=(-2)\times (-2)\times (-2)=-8$.