Hi king,
It think your saying this:
Please solve for x over the real numbers [tex]x(x+3)^2=0[/tex] .
[tex]x(x+3)^2=0[/tex]
split it into two equations:
[tex]x=0[/tex] or [tex](x+3)^2=0[/tex]
take the square roots of it.
[tex]x=0[/tex] or [tex]x+3=0[/tex]
finally, solutions are:
[tex]x=0[/tex] or [tex]x=-3[/tex]
Have a good day.