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)
5*X^5+7*X^4+35*X^3-(17*X^2)-(23*X)-(11/(x^3))+3 = 0
5*X^5+7*X^4+35*X^3-17*X^2-23*X-11*x^-3+3 = 0
-11*x^-3 = -(5*X^5+7*X^4+35*X^3-17*X^2-23*X+3) // : -11
x^-3 = (5*X^5+7*X^4+35*X^3-17*X^2-23*X+3)/11
-3 < 0
1/(x^3) = (5*X^5+7*X^4+35*X^3-17*X^2-23*X+3)/11 // * x^3
1 = x^3*((5*X^5+7*X^4+35*X^3-17*X^2-23*X+3)/11) // : (5*X^5+7*X^4+35*X^3-17*X^2-23*X+3)/11
11*(5*X^5+7*X^4+35*X^3-17*X^2-23*X+3)^-1 = x^3
x^3 = 11*(5*X^5+7*X^4+35*X^3-17*X^2-23*X+3)^-1 // ^ 1/3
x = 11^(1/3)*(5*X^5+7*X^4+35*X^3-17*X^2-23*X+3)^(-1/3)
x = 11^(1/3)*(5*X^5+7*X^4+35*X^3-17*X^2-23*X+3)^(-1/3)
| 3/5x=445 | | 2x/(x+4)=4-(8/(x+4)) | | x^2/2+3x-7/2=0 | | x=(331-7)/6 | | -2(4b+2)+(9b-2)=0 | | -3=-3x | | 4(q-3)+5q-1=6q+5+3q | | -4x/7=6 | | x/6+7=331 | | -7/12y=-28 | | 4(v-5)=8 | | 0=-a | | x=331-7/6 | | 2v+8=3v+1 | | x=-4.9x^2+33.6x+4.9 | | -26=-a | | x=331/6-7 | | 3x^2-5y^2=(-33) | | 1/2x+3x+6x=40 | | 4=11-k | | 3x+6=8X-6 | | 331-7=x/6 | | -y/3=18 | | 3(b-3)=12 | | 2n+3n+5=120 | | 10-7(3-s)+2(s+4)=30 | | x=(-19.3)50 | | 3n+4n+2=86 | | 7y=28x-7 | | x=965+50(0.02x+19.3) | | K-8=-1 | | 6.4+x=3.1 |