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^2 = 0
x^2 = 0
x^2 = 0
1*x^2 = 0 // : 1
x^2 = 0
x = 0
x in (-oo:0) U (0:+oo)
3*x-(2*x)-(6/(x^2)) = 0
3*x-2*x-6*x^-2 = 0
x-6*x^-2 = 0
x*(1-6*x^-3) = 0
-6*x^-3 = -1 // : -6
x^-3 = 1/6
-3 < 0
1/(x^3) = 1/6 // * x^3
1 = 1/6*x^3 // : 1/6
6 = x^3
x^3 = 6 // ^ 1/3
x = 6^(1/3)
x = 0
x = 0
x in { 0}
x = 6^(1/3)
| 4r+7=23 | | 7*7-7=12 | | 3x+10=3x-2 | | 10w=3+98w | | 47-8x=11+10x | | (y-2/3)^2=4/9 | | 1.2k+2.3=-05k+7.4 | | kx^2+(3k-4)x-5=0 | | 20+5x=5x(x-3) | | 18-3/4x=12 | | 5m-4=6+4-2m | | 0.333x+0.444x=0.777 | | 6x-3+5x-7=8x+3x+10 | | 7/4=4x/3x-6 | | 4-x/-1 | | 5x+-3=3x+1 | | 7/9=g | | 24-8x=11+5x | | 6n+2(n-3)=18 | | 4/9=g | | cos-0.5=0 | | 4(3x-1.3)=2x-5.2 | | s^2-12s=-32 | | 2a+5=-(3a-7) | | 8-6n=-64 | | 3n^3=6n | | x=ln(3x^2) | | 12/15x=2/5 | | 2x-15y=450 | | 13y-10y-13=22.25 | | 2-15y=450 | | 2y+18+26=4q+2 |