If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
y = (x^2)/2-(3*x)+3 // - (x^2)/2-(3*x)+3
3*x-((x^2)/2)+y-3 = 0
3*x-1/2*x^2+y-3 = 0
DELTA = 3^2-(-1/2*4*(y-3))
DELTA = 2*(y-3)+9
2*(y-3)+9 = 0
2*(y-3)+9 = 0
2*y+3 = 0
2*y+3 = 0
2*y+3 = 0 // - 3
2*y = -3 // : 2
y = -3/2
DELTA = 0 <=> t_1 = -3/2
x = -3/(-1/2*2) i y = -3/2
x = 3 i y = -3/2
( x = ((2*(y-3)+9)^(1/2)-3)/(-1/2*2) or x = (-(2*(y-3)+9)^(1/2)-3)/(-1/2*2) ) i y > -3/2
( x = 3-(2*(y-3)+9)^(1/2) or x = (2*(y-3)+9)^(1/2)+3 ) i y > -3/2
y-(-3/2) > 0
y+3/2 > 0
y+3/2 > 0 // - 3/2
y > -3/2
x in { 3, 3-(2*(y-3)+9)^(1/2), (2*(y-3)+9)^(1/2)+3 }
| 1/9(8x-27) | | 5x+12=8x+30 | | y=-2x^2+x+4 | | x-2(-6)=10 | | 0=x^2-4x-3 | | 6x+y=5x+2 | | 9(5x-6y)= | | 6x+y=7x-2 | | -1=x^2+2x+3 | | -6-2(y)=10 | | 6x+y=7x-1 | | y=x^2-5x+3 | | R*R=((R-5)*(R-5))+81 | | 7x-1=6x+y | | 3a^2+16a+21=0 | | 7x-1=5x+2 | | y=-x^2-2x+2 | | 7x-2=7x-1 | | x+2(5)=8 | | -24x+6y=12 | | -6x+y=14 | | 2(2x-2.8)=5x-5.6 | | 3x^2-15=-8 | | -0.5x+3.68=-0.1x+7.68 | | R*r=(r-5)*(r-5)+81 | | 3(x+2.58)=2x | | R=4(3Y-5) | | 3.8x-84=2.3x+9 | | 104-12x=152 | | 6.5x+8-7.5x=10 | | 20-15x=35 | | 6.5x+8-7.5=10 |