x^2+b/ax+c/a=0
x^2+b/ax+(b/2a)^2-(b/2a)^2+c/a=0
(x+b/2a)^2=(b^2-4ac)/4a
x+b/2a)/2a=(+-(b^2-4ac)^1/2
x=1/2a(-b+-(b^2-4ac)^1/2)
x^2+b/ax+c/a=0
x^2+b/ax+(b/2a)^2-(b/2a)^2+c/a=0
(x+b/2a)^2=(b^2-4ac)/4a
x+b/2a)/2a=(+-(b^2-4ac)^1/2
x=1/2a(-b+-(b^2-4ac)^1/2)