Question 63297
{{{2x^2-18=0}}}
{{{2(x^2-9)=0}}}
{{{2(x^2-9)/2=0/2}}}
{{{x^2-9=0}}}
{{{(x+3)(x-3)=0}}}
x+3=0 and x-3=0
x+3-3=0-3  and  x-3+3=0+3
x=-3  and x=3
Happy Calculating!!!!