Answer
To multiply two numbers with the same sign, multiply their absolute values. The product will be positive since both numbers have the same sign.
(refer to the step-by-step part for an example)
Work Step by Step
To multiply two numbers with the same sign, multiply their absolute values.The product will be positive since both numbers have the same sign.
Example:
$(-3)(-9)$
Multiply their absolute values: $|-3| \times |-9| = 3 \times 9 = 27$
The product must be positive, so
$(-3)(-9)=27$
