My name is Kimmy, and i don't know how to factor the trinomial 25y^{2} + 20yz  4z^{2}. I can get it, but i get messed up on getting the minus 4 at the end. all i get is a plus 4. Can it even be factored. I am a student and i am in Highschool algebra 1 thanx Hi Kimmy,You are correct about the minus 4 creating a problem. If the problem were Consider the equation
