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)
(1/4)*X^2-((2/3)*X^2)-(5*X)+(1/5)*X+3/4-2 = 0
(1/4)*X^2+(-2/3)*X^2-5*X+(1/5)*X+3/4-2 = 0
-5/12*X^2-24/5*X-5/4 = 0
DELTA = (-24/5)^2-(-5/4*(-5/12)*4)
DELTA = 6287/300
DELTA > 0
X = ((6287/300)^(1/2)+24/5)/(-5/12*2) or X = (24/5-(6287/300)^(1/2))/(-5/12*2)
X = -6/5*((6287/300)^(1/2)+24/5) or X = -6/5*(24/5-(6287/300)^(1/2))
X in { -6/5*((6287/300)^(1/2)+24/5), -6/5*(24/5-(6287/300)^(1/2)) }
| 3r+12+2+4r-2=270 | | 11x+48=-18 | | y=1(4-1) | | 4(5x+5)=260 | | -g-3g+17=-17-6g | | U*6.4=6.4 | | 1/4X^2+3/4-5X-2/3X^2+1/5-2 | | 3r+12+2+4r-2=360 | | 2.5(2)-10.0=-0.5 | | -15=r+1 | | 3r+12+2+4r-2=90 | | 1/3y+6-2/4 | | 2x-20=14x-80 | | (10x+46)=(5x+71) | | 6x+2=-28+3x | | 45+2k=180 | | 3r+12+2+4r-2=180 | | 6y+4x=6 | | mx+4x=3 | | .5s+20=5.5s+30 | | 9(-3)(-3)(-2)= | | 10m+14-3m=70 | | (12)x/12=723/24(12) | | -3/8x=6 | | 3r+12+2=4r-2 | | 3+7x=3x+7 | | -1=9+3x | | -u-12=12+3u | | -3x+7=14 | | -3/4g=-1/6 | | a-5b=-10 | | 30+2k+5x=100 |