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)
5*x-(6*x)-(180/x) = 0
5*x-6*x-180*x^-1 = 0
-1*x^1-180*x^-1 = 0
(-1*x^2-180*x^0)/(x^1) = 0 // * x^2
x^1*(-1*x^2-180*x^0) = 0
x^1
-x^2-180 = 0
-x^2-180 = 0
DELTA = 0^2-(-180*(-1)*4)
DELTA = -720
DELTA < 0
x in { }
x belongs to the empty set
| 2/3x+2/3=3/4 | | 2x^2-8a^2=0 | | 6=5x-3x+4 | | 10=-16x^2+2x+4 | | 6/x-9 | | -7x+9-2x=63 | | 5y-9+y+25=8y+20-6y | | x-.75x=15 | | 12+28=2x | | 2y=4-6x | | (2x*2x)+3x-2=3 | | -2+9=27 | | X+8x+24=30 | | -44=-7x+x+10 | | -24=3w | | 3x+140=5x+180 | | 12(x+.36)=31.20 | | 2y=4-4x | | 0=6x^2-100x+38 | | 5+2x+2x=53 | | 4x+7(-4x-8)=88 | | 5x^2+4xy+36x+18y+2y^2+81=25 | | ax^2+24x=0 | | 10x=2y+2 | | x^4+kx+1=0 | | x^4+4x^3-6x^2-21x+18=0 | | 180=3x+x^2 | | 15-x=9.5 | | 1+2x-3x=-11 | | x^4+4x^3-6x^2-21x+18=p | | 2x^3-7x^2+10x+7=0 | | 15-x=5x-19 |