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)/2)*k = 0
2*k^2 = 0 // : 2
k^2 = 0
k = 0
k = 0
| 3.1x+4.5=0 | | x^2+13x+20=0 | | 464556g-65655=45g | | 9-5(-4)=2(-4)+37 | | -6b+4b=6 | | 3p=p+2 | | 5.4x-6=10.2 | | 130+(31.67b)=500 | | 4(x+4)=x+9 | | 2d+8=10 | | n(5n-3n)=2 | | (6x^-8)^-1/2 | | 2(2n+0.6)=2(3n+0.1) | | 130(31.67b)=500 | | (-x*-x)-8x=16 | | 62=5x+12 | | 9v=v+72 | | 6(r-2)=2r+8 | | y=4(0.8)t | | 9-5x=2x+37 | | cos(2x)/2 | | 2(x-5)=110 | | (x*x)-6=x | | 17*x*(2x+4)=2720 | | 13=(2/0)-9+b | | (84-2x)=(100-3x) | | 12x+30=90 | | 2(7x-4)=6x-3 | | (x*x)=25 | | 112.5+(45b)=360 | | 3*(9+16)= | | 25y-200=150 |