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)
((((1/3)*x^3)/7)*x^5)/8 = 0
1/168*x^8 = 0 // : 1/168
x^8 = 0
x = 0
x = 0
| 3cosx+5sinx-1=0 | | 8-3/8r=-4 | | 2h+5=6h-7 | | logxn=nlogx | | x-ln(x^2-4x+4)=0 | | 10x^2=32+32x | | 3h-5=6h-7 | | ln(x^2-4x+4)=0 | | x/6=x-38 | | 5x+16=2(2x+7) | | 2a^2-15a=8 | | 2w^2-28w=(-98) | | 20+3x+x= | | 86+2x=57 | | 2x^2+2y^2=-18 | | 2x-3(4+5x)=38 | | -6x+y=-2 | | -2(1+5m)=-2+7m | | x^2+11x= | | 17=x/20 | | 12n^2+2n-70=0 | | 5f-3=7 | | 5x+6(2x-3)=8-9x | | 11x+2+23=360 | | -3-7(-1-x)=7x+12 | | -4x+6y=-16 | | 2n^2+2n-70=0 | | -2x^2-8=-x-6-3x^2 | | 10x^2-12x+3=0 | | 7mn+-2mn+4x-2= | | -x-6y=-4 | | -8+x+15=7x+12 |