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)
0.625/4 = 0.5/x // - 0.5/x
0.625/4-(0.5/x) = 0
0.625/4-0.5*x^-1 = 0
-0.5*x^-1 = -0.15625 // : -0.5
x^-1 = 0.3125
-1 < 0
1/(x^1) = 0.3125 // * x^1
1 = 0.3125*x^1 // : 0.3125
3.2 = x^1
x = 3.2
x = 3.2
| 4y-6=4-y | | (x-1-i)(x-1+i)= | | n-2=-16 | | x/11=-18 | | 12m-25=4m+7 | | x/6=-3/2 | | 10+4x=2(5+2x) | | |x/5|=3 | | k/3=17 | | (2-u)(3u-8)=0 | | a/3=-13 | | 7(x+1)+3=8x-4 | | 3x+ix=0 | | -19b=-285 | | -26+4x=-52+18x | | x:2+x:3=5 | | 7x-5y=39e | | y=-0.8x+5.6 | | 3h=42 | | 17/5 | | v+14=15 | | 3x-4x+x=-2+5-2 | | 3a+9=3a-9 | | -3y(-4)=32+4+4 | | -3t^2+12t+2=0 | | 4+2(x-4)=6 | | 5(4)+12(2)= | | y^2+20y+19=0 | | -3+x=-4x-43 | | 0=x^2-14x-120 | | 11-c=16 | | 6((p+5)(p+5))((p+5)(p+5))-7(p+5)(p+5)+2=0 |