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)
2/x-(4/x)-2 = 0
2/x-4*x^-1-2 = 0
-2*x^-1 = 2 // : -2
x^-1 = -1
-1 < 0
1/(x^1) = -1 // * x^1
1 = -1*x^1 // : -1
-1 = x^1
x = -1
x = -1
| 4x+10y=-98 | | 6w^2-13w+3=0 | | T/-12=2/3 | | 6w^2-13+3=0 | | T/-12=2-3 | | -7(2v-5)=26 | | 7x^2+37x-42=1 | | 12N^2+27N=0 | | 43/20 | | 3n+6=4(n+4)+10 | | 22=-3(5r-2) | | 7x^2+29x-41=0 | | 5/4×10/7= | | 5/4×10/7 | | 5x-3+4x=-32 | | -2(6y+2)+3(4y-6)= | | 3n+3=2(n+2)+14 | | (3u+2)(7-u)=0 | | (6+4i)*z=2i(z+10) | | 12(s-8)=40 | | 24x/12x | | 5v^2+45v+90=0 | | 5y+36=8(y+6) | | B-1/3=34 | | S+.25=1 | | 16m+6=28 | | (5x^2)(6x^2)= | | 2+4Q=14-2Q | | 2x^2+2y^2+14y+6y+2=0 | | 3x^5-10x^4+2x-5=0 | | =3x^5-10x^4+2x-5 | | f(x)=3x^5-10x^4+2x-5 |