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)
1.37 = (x^3)/(x^2) // - (x^3)/(x^2)
1.37-((x^3)/(x^2)) = 0
1.37-x = 0
1.37-x = 0 // - 1.37
-x = -1.37 // * -1
x = 1.37
x = 1.37
| 16b-12-3b=14 | | 36-x=8 | | f(x)=f(x-4)+f(2x-1) | | 14x+-13x=7 | | 12y-7y=45 | | 2(s-5)-6=4 | | 28+(8+x)=36 | | x^5=5x^4 | | 3(d-4)+1=10 | | 2x+57=119 | | 2(g+2)=6 | | -3u-11u=-14 | | -15g+3g=12 | | 3(u+1)+1=13 | | 34=2y+8 | | 14-2f=10 | | 5w+1.5=4.5 | | -10t+-t-9t+4=-16 | | J+4=8 | | 6+x=62 | | -3-X-60=20 | | -10p+4=-16 | | 4n-n+4=10 | | 3w+3=39 | | 8X+X-142=65 | | 4y+y-3y=14 | | 17x+9y+7z=107 | | x^3+7x^2+15x+9= | | (x*3)+11.40=(x-4)*5 | | 4(x-3)=2x+57 | | 20x^3=25 | | -9d+8-3d=36 |