[input]x^2-2x+0.75=-1.5x+4[/input]
x^2-2x+0.75=-1.5x+4
x^2-2x+0.75+1.5x-4=0
x^2-2x+0.75+1.5x-4=0
x^2-0.5x-3.25=0
a*x^2 + b*x + c = 0
p= b/a
q= c/a
here a = 1, then
p = -0.5
q = -3.25
x 1, 2 = -p/2 +- sqrt( (p/2)^2 - q )
x 1 = +0.5/2 + sqrt( (-0.5/2)^2 + 3.25 )
x 2 = +0.5/2 - sqrt( (-0.5/2)^2 + 3.25 )
[input]+0.5/2 + sqrt( (-0.5/2)^2 + 3.25 )[/input]
[input]+0.5/2 - sqrt( (-0.5/2)^2 + 3.25 )[/input]