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-((3/4)*x^4) = 0
(-3/4)*x^4+8 = 0
-3/4*x^4 = -8 // : -3/4
x^4 = 32/3
x^4 = 32/3 // ^ 1/4
abs(x) = (32/3)^(1/4)
x = (32/3)^(1/4) or x = -(32/3)^(1/4)
x in { (32/3)^(1/4), -(32/3)^(1/4) }
| 4x-4=51 | | 8-3/44 | | (5x+2)(2x+1)=27 | | 2mn^3*-2nm^2= | | -2(x+1)=3x+8 | | y=8-3(2+3) | | 3 = c4– 1 | | 3y+12=-57 | | 3x+4yx=16 | | 6x+800=10x+1000 | | 1/2x(2x-18)=4x | | 4x+2x-15+x=4x-3 | | Sin^4(x)-1=0 | | 15x-3=-4x+55 | | 2x-3(4x+7)=3x+5 | | 8xb-3=19 | | -135=-5(-5-8n) | | 2x-1+6x-8=180 | | 455=7(1-8a) | | 8(6n+2)-8=104 | | 3x-9=13x-59 | | 9=-1/15x | | 0.5e+20=25 | | -7(6+n)=-91 | | Y=3c+11 | | -4(2n+8)-5n=-97 | | -27+8=-12+x+20 | | 15-3b=63 | | -91=-7(b+7) | | 7x2/2 | | 301=-7(6x-7) | | -152=8(-2k-3) |