00:01
The first thing we need to do for this problem is factor as much as we can.
00:05
So on the top, i'm going to factor out the common factor.
00:09
These are both divisible by five.
00:11
And also, since the term with the variable, since that has a negative coefficient, i always want my variable term to have a positive coefficient.
00:20
So i'm going to factor out a negative along with the five.
00:25
And when we do that, that's going to make this become negative 4 plus y.
00:35
And then on the bottom, we have y squared minus 16, which is a difference of squares.
00:40
So that's going to factor out to be y plus four and y minus four.
00:48
So now that we've done that, i'm just going to rewrite this so that we have everything more clean...