How do you evaluate #3( - 4) + 6( - 1)#?
1 Answer
Mar 2, 2018
A positive times a negative is a positive, and adding a negative is the same as subtracting.
Explanation:
Because a negative times a positive is a negative, we get
And because adding a negative is the same as subtracting we get
A less confusing way to add a negative to a negative is to treat it like this
This means we can work out