Question 925324

{{{x^2 +4x+3=0}}}

{{{x^2 +x+3x+3=0}}}

{{{(x^2 +x)+(3x+3)=0}}}

{{{x(x +1)+3(x+1)=0}}}

{{{(x+3)(x+1)=0}}}

solutions:

if {{{x+3=0}}} then {{{x=-3}}}

if {{{x+1=0}}} then {{{x=-1}}}

{{{ graph( 600, 600, -10, 10, -10, 10,x^2 +4x+3) }}}