WHY THE FUCK CAN'T I SOLVE THIS

Seriously, why the fuck can't I solve this? I remember this things being easy.

inb4 underage

I'm 25 and I picked up my old algebra book for lulz.


(x+4)(x-4)-(x+3)^2-5=0

x=?

(x + 4) (x - 4) - (x + 3)^2 - 5 = 0
x^2 - 16 - x^2 + 6x + 9 - 5 = 0
6x - 12 = 0
6x = 12
x = 2