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^3 = 0
x^3 = 0
x^3 = 0
1*x^3 = 0 // : 1
x^3 = 0
x = 0
x in (-oo:0) U (0:+oo)
(x^7)/(x^3) = 0
1*x^4 = 0 // : 1
x^4 = 0
x = 0
x in { 0}
x belongs to the empty set
| 3/5n=27 | | 97-3x=15x+17 | | 12=1800(1.053+1.053x)/300 | | 1.7x+0.15(1-x)=0 | | 8a+2a-3a= | | 2x^2+32x-8=0 | | 4.7y=32.9 | | 24x^2=24 | | (5x+2)+(-6x+9)= | | Y=x^2-8x+19+2x-6 | | 0.4X-0.1*12-4X=0.5*X-8 | | 69/(z+4)=162/2z | | -3/8+x | | 2*(a^2+4a-4)= | | 8-7x=10-21x | | -3/8+1 | | 0.4X-0.1(12-4X)=0.5(X-8) | | 2x-44=9x | | x-(x*10/100)=2000 | | 0.6X+7.1=4.4 | | 2=11+3(x+3) | | 3/5*4/7*1/3= | | 2x-1=2(x+5) | | a^2+4a-4= | | 9e+22= | | 6.7x+9-4.7x=1 | | 10-2x=14-4x | | 10+z=18 | | 2x+x+24+x-4=180 | | 36/2+2=72 | | 29=13+4t | | s=6+4.09s |