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)
(x^2)/4+(2*x)/3+4/9 = 0
1/4*x^2+2/3*x+4/9 = 0
DELTA = (2/3)^2-(1/4*4/9*4)
DELTA = 0
x = -2/3/(1/4*2)
x = -4/3 or x = -4/3
x in { -4/3, -4/3 }
| -x/10+2=-12 | | -5/6x-3=27 | | -4x^2+20x-21=0 | | 6(x+9)=9+7x | | 104+(-87)= | | 7-8+3h=21h-49 | | f-1/7=4 | | 21/x-20/x-3+2=0 | | 7+5/4 | | D=125(60) | | b^-1/b^-3 | | 2/3h-9=6-2/3 | | 7/a=5/7 | | -8m=-7m-6 | | 9x-1.6=-4-8.1 | | -6+(-28)= | | -10y+12=78 | | 5x+10y=19 | | 10x^2+30x+30=0 | | -9x-9=-9 | | n=5n+5z | | x/2+y=10 | | -x/10+2=-2 | | -7=3x+9+7 | | 6.3=c/9 | | 32+(-19)= | | -13/15=x-15/16 | | 12+7q=15+69 | | 4e+9=e-6 | | (1-10i)/(1+2i) | | -2/7x-6=-4 | | 24x^2+38-195=0 |