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/x-(x/5) = 0
1*x^-1-1/5*x^1 = 0
(1*x^0-1/5*x^2)/(x^1) = 0 // * x^2
x^1*(1*x^0-1/5*x^2) = 0
x^1
(-1/5)*x^2+1 = 0
(-1/5)*x^2+1 = 0
DELTA = 0^2-(1*4*(-1/5))
DELTA = 4/5
DELTA > 0
x = ((4/5)^(1/2)+0)/(2*(-1/5)) or x = (0-(4/5)^(1/2))/(2*(-1/5))
x = -5/2*(4/5)^(1/2) or x = 5/2*(4/5)^(1/2)
x in { -5/2*(4/5)^(1/2), 5/2*(4/5)^(1/2)}
x in { -5/2*(4/5)^(1/2), 5/2*(4/5)^(1/2) }
| -19x-57= | | 2+5x-3x+4= | | 20=2x+16 | | 3/2(2x-4)=x-2 | | -48x+96= | | 8b-25=7(3b-2)-2b | | f(x)=6x^2+5x-6 | | 2x+10+3(6x+10)= | | 2(4w-6)=32 | | 10(d+3)-(-9x-4)=x-5+3 | | 2x^9-2x=0 | | 18+6y=12x | | 9x+0.46y-15x-4.24y= | | -6times+5=17 | | -8(6x+10)= | | 3x-0.03y+2x+5.5y= | | V/2=3.2 | | log(x)=log(6)+log(x-1) | | 2(h+1)=13 | | 8/4-5i | | 45x+5x=7x-15 | | x^2t+5y=3z | | -5(-3)-3(-3)= | | 2t+35=70 | | h=-3t^2 | | 3xy+5zt=2 | | 8x-6(4x+9)= | | 60+50.45=57.97 | | 7x^2+2y^2=10 | | .5x-1= | | 1/x-5=1/4 | | (4y^6)(2y^7)= |