If you think about it simply, all you have to do is divide
Your finding how much teams can be made out of 12 people with the requirement of 4 being in each.
12 / 4 = 3
If your having a hard time with dividing you can just use repeated subtraction. So just subtract 4 from 12 until it ends in 0, and then count how much times you subtracted!
Kara incorrectly factored 2(16x^2 + 24x + 9) she did not find the correct factors when she factored out. The correct factored expression would be 2(4x+3)^2
