Question 264649
{{{x^2+9x=0}}} Start with the given equation


{{{x(x+9)=0}}} Factor the left side




Now set each factor equal to zero:

{{{x=0}}} or  {{{x+9=0}}} 


{{{x=0}}} or  {{{x=-9}}}    Now solve for x in each case



So our answers are 


 {{{x=0}}} or  {{{x=-9}}}