Multiplication of integers:
-4(-2)

8

Step-by-step explanation:

First, just multiply the number values (four and two) to get 8

Then, add up how many negative signs there are. If there is an even amount of negative signs, then the number will stay the same. If there is an odd amount of negative signs, then the number will be turned to a negative.

the first one is true

the second one is true

the third one is false

the fourth one is true

you got them all correct

if you need to know why, please let me know