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)
(82/5)*x^2+584/5 = 82/5 // - 82/5
(82/5)*x^2+584/5-(82/5) = 0
(82/5)*x^2+584/5-82/5 = 0
82/5*x^2 = -502/5 // : 82/5
x^2 = -251/41
x belongs to the empty set
| 6x+56=2x+100 | | 8x+54+2x+90=180 | | 5x+181+7x+227=180 | | 7x+210+7x+210=180 | | 8x+48=2x+84 | | -40+-8x= | | Y=-40+-8x | | 8x+220+Y=180 | | Y=8x+220 | | 3x+114=8x+220 | | 3x+114+y=180 | | f/10=16 | | 6x+8=2x+76 | | x/(7)+3=-6 | | 4x+36=6x+18 | | 5x+86+y=180 | | 2x+67=7x+5 | | Y=175+-7x | | 7x+5+Y=180 | | -13=26-b-10 | | 5x+30=8x+12 | | 4x+73+y=180 | | 2x+59+y=180 | | 2x+120=8x+24 | | 6x+195+y=180 | | y=6x+195 | | 2x+120=2x+120 | | 7/2+(-3/5) | | 6x+12=3x+66 | | 8x+30=2x+96 | | y=2x+96 | | 8x+195+y=5x+76 |