if ya asking for simpliicatio
remember that [tex]\sqrt{ab}=(\sqrt{a})(\sqrt{b})[/tex]
and
[tex]\sqrt{a^2}=(\sqrt{a})(\sqrt{a})=a[/tex]
[tex]\sqrt{50}+\sqrt{18}=[/tex]
factor
[tex](\sqrt{2})(\sqrt{5})(\sqrt{5})+(\sqrt{2})(\sqrt{3})(\sqrt{3})=[/tex]
[tex](\sqrt{2})(5)+(\sqrt{2})(3)=[/tex]
[tex]5\sqrt{2}+3\sqrt{2}=[/tex]
[tex]8\sqrt{2}[/tex]