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)
1/x-(3/x)-3-2 = 4/1-(2*x) // - 4/1-(2*x)
2*x+1/x-(3/x)-(4/1)-3-2 = 0
2*x+1/x-3*x^-1-4-3-2 = 0
2*x^1-2*x^-1-9*x^0 = 0
(2*x^2-9*x^1-2*x^0)/(x^1) = 0 // * x^2
x^1*(2*x^2-9*x^1-2*x^0) = 0
x^1
2*x^2-9*x-2 = 0
2*x^2-9*x-2 = 0
DELTA = (-9)^2-(-2*2*4)
DELTA = 97
DELTA > 0
x = (97^(1/2)+9)/(2*2) or x = (9-97^(1/2))/(2*2)
x = (97^(1/2)+9)/4 or x = (9-97^(1/2))/4
x in { (9-97^(1/2))/4, (97^(1/2)+9)/4}
x in { (9-97^(1/2))/4, (97^(1/2)+9)/4 }
| x^5+y^5=20xy | | 4c-c=3 | | 6c-5c=20 | | 8y^2-26y+15= | | 9z^2=13z | | 9z^2=113z | | -5(n+4)+24=-3n-0 | | 6+8m-3=9m+38-6m | | 2(3x-2)+17=80 | | 3x^2+8t+5=0 | | z-49=z | | 5-(-7-y)=-5 | | iz^4+4z^2+3z=0 | | 6t-8=-23-t | | 2/4-4/8= | | 5x+2-3(4-3x)=2(2+3x)+7x | | 5-(-7-y)=-d | | -2s^2+3s-4=0 | | 3y^5/9y^2 | | 2+(4-x)=5 | | 5x-18=6+x | | 2-(1+5t)=9-(2t-1)*3 | | 6-3(b+8)=6-22 | | 7(x+2)-1=5x+2(5+x) | | (5w+2)(3+w)=0 | | 1+6n+3n=-8 | | (3x+1)+(3x+1)+(2x+6)=36 | | 9x+3=13x-25 | | X+y=-34 | | -u-(-4u)= | | 2k^2=-12+11k | | (x/(3x-9))-1=(1/(x-3)) |