I'm assuming that y2 means y^2 or y squared. In that case, your factors will be (6y+1) and (6y-1).
9 games
You can get this by multiplying each percentage by the total number of games to see what they have to expect.
.55*180 = 99 games (red team)
.60*180 = 108 games (blue team)
Now subtract the blue team expectation from the red team.
108 - 99 = 9 games.