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)
(10/3)*x^2+65*x-3000 = 0
10/3*x^2+65*x-3000 = 0
DELTA = 65^2-(-3000*10/3*4)
DELTA = 44225
DELTA > 0
x = (44225^(1/2)-65)/(2*10/3) or x = (-44225^(1/2)-65)/(2*10/3)
x = 3/20*(5*1769^(1/2)-65) or x = 3/20*(-5*1769^(1/2)-65)
x in { 3/20*(-5*1769^(1/2)-65), 3/20*(5*1769^(1/2)-65) }
| y=x^2-11x+8 | | 9k-12k-4=k+3 | | 1.8=4y+14.2 | | 145+4g=137 | | 145+4g=181 | | -3/5x+68=-37 | | 1.6(-2P-9)+1.8P= | | 5-n=9 | | 6x(7x-1)=43x | | 2n+3.3=6.1 | | 0.3(5M+9)-1.7m= | | 0.158x^2+0.014x-0.434=0 | | (3x+7)(3x+7)= | | 84-5x=14 | | 7x/2=x/12-x/6 | | 13x+6=32 | | 38x+33=603 | | (6/(5-t))+(3/(5-t))+(3/(25-t^2))=0 | | 19/y+21/y=5 | | 9x-4=311 | | 1/4x=3/16 | | -4/7v=-822/3 | | -8x+4z-xy-5xz= | | 2x^2+3x-43=0 | | -4/7v=-82/3 | | 7-4x=3x-7 | | 9x+6y=6 | | 2080/100= | | -2y-10=5y+28 | | 8x+7/6 | | w/11-2=7 | | 4x-y=38 |