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)
5*x^2+((3*x)/3)*x = 0
6*x^2 = 0 // : 6
x^2 = 0
x = 0
x = 0
| -12x-10y=-400 | | x+3.1=12.5 | | x+35+120+30=180 | | 14+2x=20x+1.5 | | h=-16t^2+120t+58 | | x=3.1+12.5 | | -17+4n=7(6n+3) | | 4(x+5)-10=14 | | 0.50=x/30 | | 15.5(c+0.20)+6=50 | | 5x=6x-2 | | 8(3-b)=20-8b | | w(x)=x^2-10 | | 2-m/3m+m^2-2/5m^2 | | h+7=11 | | x/-2-18=-7 | | 1x-45=3x+2 | | 3/4x-2=2x-2/3 | | 3y-7y-2y+3= | | x/7-5=-12 | | -x+12=-4 | | -6(3x+2)=28+2x | | 2t-3t=60 | | -5/8x=-15 | | (3/5)*15 | | -x/12-8=-9 | | -2x-3x+4x= | | (3x-2)2=49 | | -6(m+1)-m-7=-7(m+5)+22 | | -x/3+4=10 | | 12-r= | | -5y+7=-6y+1 |