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)
((2/6)*x^4)/8 = 0
1/24*x^4 = 0 // : 1/24
x^4 = 0
x = 0
x = 0
| -3(2x-4)+4=-6x+16 | | 20(3x-0.75)-16=8 | | (4x^2+8x+2)-(2x+3)= | | (5y+2)(5y+2)=98 | | 5p-p=4p | | X^2-7x-18=2 | | 9x-1+7x=6x+2-8x | | 8x+9=19x+8 | | y^2+y=8.5 | | X-4sqrt(x-1)=1 | | 2x(3+x)=-2 | | 7(2x-1)=84 | | 5=11v-10w | | 2x^2-15x+100=0 | | (3s+2)/4=5 | | 250=(w+9)(w-6)3 | | 250=(w+9)(w-6)6 | | 0.50x+0.20y=3.1 | | Y^2-sqrt(y-2)=4 | | T*5-6=13 | | 250=(w+9)(w-6)2 | | 32+x-37+5=2 | | A*5+3=9 | | x+9-13=12 | | k^2+6=5k | | m/5-9=7 | | x-7+12=26 | | w/7+11=16 | | 10x^2-15xy=0 | | 2y-9+3y=44 | | 8x-3=-60 | | 1+4x=8-3x |