We've been solving nice guys like
Notice that it's already set equal to 0.
So, what if the problem starts out like this?
Can we just factor and do the blob thing?
Are these the answers? Check them!
Why didn't this work?
Think about our main idea"
IT MAKES SENSE!
But, THIS is what we tried:
WE CANNOT SAY THIS!
Uh.... What about
There are a ton of things a and b can be other than 18.
So, when you start with something like
ALWAYS SET IT = 0 FIRST.