If it's not what You are looking for type in the equation solver your own equation and let us solve it.
m in (-oo:+oo)
(4*m^3)/4 = 256 // - 256
(4*m^3)/4-256 = 0
1*m^3 = 256 // : 1
m^3 = 256
m^3 = 256 // ^ 1/3
m = 4*4^(1/3)
m = 4*4^(1/3)
| .7(x+10)+.9x=71 | | 44=6x+(-x+19) | | .2x+4.8=4.1 | | 3x-2=729 | | 3.67-2y=24 | | (8+8i)-(-6i+I)= | | 2m^2+7m=14 | | 37567x-57643+1=3 | | x/2*8=4 | | h+p=8 | | 90/n=36/3 | | k^3+k^2+3*k=8 | | 1.25+.5x=2.75 | | -(10-41(.2439)/21) | | 32+5f=7(4f-2) | | 6x-9=-8 | | 100x^2+180+81=0 | | -5(2x-7)=4-3(x+5) | | 1.8/18=n/12 | | 25-8x+x^2=0 | | 22=3x+(-x+16) | | -6+3(1+7d)=28 | | -0.4761904762+1.952380952y=0 | | -4(7y-6)=-23 | | r=5x^2+y | | X/6-3=×/6 | | 0=3x^2+6x-24 | | Y-5/3z | | .20(y-6)+.10y=.18y-2.1 | | 8/3-3/4 | | 7x-10=9x-3 | | 4x-18=-6x+32 |