The product of two numbers with different signs is negative.
C
The product of two numbers with different signs is negative.
D
The product of two numbers with the same sign is positive.
A
- 14
B
- 30
C
- 12
D
48
Practice makes perfect
When multiplying real numbers, the product will be positive if the signs are the same and it will be negative if the signs are different.
cc
Same Sign & Different Signs
(+)(+)=(+) & (+)(-)=(-)
(-)(-)=(+) & (-)(+)=(-)
Let's look at our expression.
7*(-2)
In our case, one number is positive and one number is negative. This means that the product will be negative.
Let's take a look at our expression.
-3(10)
Recall that when we multiply real numbers, the product will be positive if the signs are the same and it will be negative if the signs are different. In our expression, one number is negative and one number is positive, so the product will be negative.
