If it's not what You are looking for type in the equation solver your own equation and let us solve it.
X in (-oo:+oo)
(8/5)*X^5-(8*X^3) = 0
(8/5)*X^5-8*X^3 = 0
8/5*X^5-8*X^3 = 0
8*X^3*(1/5*X^2-1) = 0
1/5*X^2 = 1 // : 1/5
X^2 = 5
X^2 = 5 // ^ 1/2
abs(X) = 5^(1/2)
X = 5^(1/2) or X = -5^(1/2)
8*X^3 = 0
8*X^3 = 0 // : 8
X^3 = 0
X = 0
X in { 5^(1/2), -5^(1/2), 0 }
| 2(1-3x)=-2 | | 5-2(n+4)=0 | | -2+-3=-4+x | | 8/5X^5 | | r+4.3=-10 | | -2-3=-4 | | y=0.78x+10000 | | 3(X-4)-4(X-3)=X+5-(X-1) | | 4/3*3.14*14^3 | | 29x*.08=46.12 | | 4=-2x+18 | | 4x+15=3x-6 | | -(x-5)=23x+2 | | 15x+36=17x | | 3y-9x=-9 | | 5-2n+4=0 | | 8X-5=1+7X | | x=1.125+0.25y | | 6x-13=4x+2 | | 9x+2.9=-3x+5.3 | | ln((x+3)(x-8))-ln(x+3)=ln(3) | | 4b^2-16b+7=0 | | 9x+21=x-35 | | 1.3m=3.12 | | y^2-3y-54= | | T^3+2t-4t-8=0 | | 10y=3x-10 | | (x-9)+3x=25 | | -8x+2=7x+1 | | h+3(h-5)=13 | | 4a^2-31a+21=0 | | -5x+18=12x+1 |