Answer
To multiply two numbers with different signs, multiply their absolute values. Their product will be negative.
(refer to the step-by-step part for an example)
Work Step by Step
To multiply two numbers with different signs, multiply their absolute values. The product is negative.
Example:
$(-3)(9)$
Multiply their absolute values: $|-3| \times |9| = 3 \times 9 = 27$
The product must be negative, so:
$(-3)(9)=-27$
