Question 420439

  {{{ x^2+12x+11=0 }}}

  {{{ (x^2+2*6x+36)-36+11=0 }}}

  {{{ (x+6)^2-25=0 }}}

  {{{ (x+6-5)*(x+6+5)=0}}}

  {{{(x+1)*(x+11)=0 }}}

  {{{ x^2+12x+11=(x+1)*(x+11)}}}

      {-11,-1}.