00:01
The sum of two positive numbers will always be positive.
00:05
So, for instance, positive 5 plus 3, positive 3, it's still going to be positive a.
00:11
It's never going to be a negative number.
00:14
Now, for part b, the sum of two negative integers will always be negative.
00:19
So, for instance, negative 5 plus negative 3.
00:22
Will this ever be a positive number? no, because negative 5 plus negative 3 will be negative 8.
00:27
Now, part c, is the sum of a positive integer? integer and a negative integer always positive sometimes.
00:36
Because for instance, we have positive numbers.
00:41
So let's just say seven and we have a negative 10.
00:47
In this case, because the absolute value of negative 10 is greater, we're going to take the sign of negative 10...