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)
8*x-(4*x^2) = 8/3 // - 8/3
8*x-(4*x^2)-(8/3) = 0
8*x-4*x^2-8/3 = 0
8*x-4*x^2-8/3 = 0
DELTA = 8^2-(-4*(-8/3)*4)
DELTA = 64/3
DELTA > 0
x = ((64/3)^(1/2)-8)/(-4*2) or x = (-(64/3)^(1/2)-8)/(-4*2)
x = ((64/3)^(1/2)-8)/(-8) or x = ((64/3)^(1/2)+8)/8
x in { ((64/3)^(1/2)-8)/(-8), ((64/3)^(1/2)+8)/8 }
| 2(q+1)=14 | | 2.4(x-1.6)=28.61 | | 5x-3/5=31/15 | | 10n+81-4n-8= | | x-5=135 | | 3x+3-6x=21 | | 4÷2/3 | | 6m-3=-6(2-m) | | 78=3+2x+x | | d-5=3 | | 24p^3+15p^2-56p-35=0 | | 35*70=m*35 | | 8(25.375-0.375y)+5y=189 | | 3x+(7x+40)=180 | | -8n-8(5-3n)=32+16n | | 2b+48=3b-24 | | -27=9(2-7) | | 4+3X=27 | | x-0.94=4.318 | | 4x+21x-1=5(5x+3) | | 8+2x-5=14 | | y=2x^2-28x+99 | | 29/9x7/3 | | -2.5x-2=-5.7+6 | | y^2-16y=272 | | 14x=245 | | 6a-14=6a-14 | | 3(x+8)+1=-3(x+4)+x | | 300x^2-750x+1.5625=-625+1.5625 | | 8n-5n=24 | | 3x-3=2x+15 | | 3x+2(x-1)=13 |