It's going to be, x is going to be equal to, so negative b, so it's 200, negative negative 200 is positive 200, plus or minus the square root of b squared, which is negative 200 squared, so I could just write that as 200 squared. Doesn't matter if it's negative 200 squared or 200 squared, I'm gonna get the same value. So, let me give myself some more space. So negative 200 squared, well that's going to be four with four zeros. One, two, three, four. So that's gonna be 40,000 minus four a c. So minus four times 12, 12 times 600, I still didn't give myself enough space, times 600, all of that over two times a. So all of that over 24.