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)
(1/5)/2 = 2/x // - 2/x
(1/5)/2-(2/x) = 0
(1/5)/2-2*x^-1 = 0
-2*x^-1 = -1/10 // : -2
x^-1 = 1/20
-1 < 0
1/(x^1) = 1/20 // * x^1
1 = 1/20*x^1 // : 1/20
20 = x^1
x = 20
x = 20
| x^2-x+2.8=0 | | X=7(-1) | | 63+7=84 | | Fx=8x^2-4x+3 | | 3x(X+12)=96 | | -(5p+8)=4(p+4)-6 | | -3(s-18)=9 | | 19+4*3-4=65 | | 3(2x-3)(4x+1)-(8x-5)(3x+2)=64 | | X=7(2) | | 7c/d/(-21/d) | | L-3a=2c | | 4(7-3)+5= | | 6a^2-5a=4 | | X=7(0) | | x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10=1.5 | | X=7(1) | | 4(v+3)-6v=8 | | x/17=1/3 | | r-(4+2r)=-(4r-7)+4 | | -2+10-3x=5x-3-6x | | -2=11-x/3 | | 5/14=5/6x | | m-1=-18 | | y=3z-7 | | 4.06=x*.7 | | 2t^2-11t+2=0 | | 73=12x-11 | | x^2+y^2+25=0 | | 4(r+1)-8=36 | | -18=1/4y | | 6(d-3)=6d-18 |