If it's not what You are looking for type in the equation solver your own equation and let us solve it.
k in (-oo:+oo)
((4*k)/12)*k = 0
1/3*k^2 = 0 // : 1/3
k^2 = 0
k = 0
k = 0
| 36N=72 | | 12x+3y=20x | | z/9-9=5 | | 2(-7-4y)+4y=16 | | 2(x+1)-19=1 | | X=-6/5 | | 4x^2y-8xy^2-12xy= | | 8=3c+12-c+4 | | 8f+2=3f+12 | | 18x-30=3 | | n/4=9/12 | | 3+42x=21x+21 | | 20y^2+51y+28= | | 10x-19=7x+8 | | 45-9x=90 | | 5p^2-16p+9=6 | | 45x^3-5x=0 | | 3x-4(-4-2)=141 | | 18y+6x=36 | | x*.21=2769 | | 10m-27=53 | | 5x^2+11x-8=0 | | h(t)=-16t^2+116 | | 3*x^2+8*x=7 | | 4b+2b-7=11 | | 3x^2y+6xy= | | c/3-4=6 | | 8x+60=9 | | 8(x-5)=6x+5-3x | | 49q^2=0 | | x*.22=909 | | 27-x=43 |