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)
X^4 = 1/128 // - 1/128
X^4-(1/128) = 0
X^4-1/128 = 0
1*X^4 = 1/128 // : 1
X^4 = 1/128
X^4 = 1/128 // ^ 1/4
abs(X) = (1/128)^(1/4)
X = (1/128)^(1/4) or X = -(1/128)^(1/4)
X in { (1/128)^(1/4), -(1/128)^(1/4) }
| -4/9÷-1 | | -80=-2(7n-2) | | 12*.21=x | | 4(x+1)=2(x+8) | | (5v+3)(7+v)=0 | | 7x+2-3x=6(4+1) | | 8t=12t-24 | | -2r-8(3+r)=6 | | https://www | | 336x+69120=x^2 | | 2/5*-3/10x=5 | | 9-2=3 | | 4(2x-5)=(2x)2+2(x+2) | | .15x+.25x=.21y(12) | | (7b-3)-2(3b+3)=-6 | | 7w-14w=9 | | -4x+3y=25fory | | (2x+14)(2x+11)-208=0 | | 4(2x-5)=(2x)2+3(x+2) | | 370x-2100=x^2 | | 300x-200x-1500=0y | | 3(-1.5)+7=-1.5+1 | | 2x^4-21x^3+x^2+329x+49=0 | | 49h^2+26h+0=0 | | x+(30+x)+(-34+4*x)=650 | | 18+483=21+462 | | 14(2/3)^2 | | 12(2/3)^3/3 | | x+(14+x)+(-16+2*x)=406 | | x+(14x)+(-16+2*x)=406 | | -4/10 | | 4/2k-(2.1k-7.5)=28.6 |