If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
(x^2+7*x-44)/x-4 = 0
(x^2+7*x-44)/x+(-4*x)/x = 0
x^2+7*x-4*x-44 = 0
x^2+3*x-44 = 0
x^2+3*x-44 = 0
x^2+3*x-44 = 0
DELTA = 3^2-(-44*1*4)
DELTA = 185
DELTA > 0
x = (185^(1/2)-3)/(1*2) or x = (-185^(1/2)-3)/(1*2)
x = (185^(1/2)-3)/2 or x = (-(185^(1/2)+3))/2
(x+(185^(1/2)+3)/2)*(x-((185^(1/2)-3)/2)) = 0
((x+(185^(1/2)+3)/2)*(x-((185^(1/2)-3)/2)))/x = 0
((x+(185^(1/2)+3)/2)*(x-((185^(1/2)-3)/2)))/x = 0 // * x
(x+(185^(1/2)+3)/2)*(x-((185^(1/2)-3)/2)) = 0
( x+(185^(1/2)+3)/2 )
x+(185^(1/2)+3)/2 = 0 // - (185^(1/2)+3)/2
x = -((185^(1/2)+3)/2)
( x-((185^(1/2)-3)/2) )
x-((185^(1/2)-3)/2) = 0 // + (185^(1/2)-3)/2
x = (185^(1/2)-3)/2
x in { -((185^(1/2)+3)/2), (185^(1/2)-3)/2 }
| 6y-35+3y=145-6y | | -3/4x=-5/6 | | 6x+5y=61 | | 6x^2+41=5 | | 30+0.05m= | | x*19.3+(100-10-1.93-0.1*x)*0.471=150 | | r^4-2r^3-8r^2=0 | | 2.9+6y=1.1 | | 3x+14+2x=44 | | 6+0.5x=22 | | -6x+4y=8 | | c=30+0.05 | | x^2+9y^2=9 | | a^2-4a-60=0 | | 14-5y=-1 | | -.5(32x^2)+1000x+50=2000 | | -.5(32x^2)+1000x+50=0 | | x^2+10x+y^2-14y+64=0 | | 7.50+2.50c=12.50 | | 4v+3w+4=7 | | 4(4+1)=3x-4(6-x)+8 | | x+5-4x=32 | | -48=8t | | -6+7(x-2)=16x+5-9x | | 243=y(4y-9) | | p=2r-c+4/n | | -(7y+1)-(-6y-6)=3 | | -.5(32x^2)+24x+60=68 | | 243=4x^2-4x | | 2-88a+3a=17 | | 8-x=27 | | -6+5x+2-7x=-48 |