Question 750565


{{{ x^2-2x-8=0}}}....write {{{-2x}}} as {{{2x-4x}}}

{{{ x^2+2x-4x-8=0}}}....group

{{{ (x^2+2x)-(4x+8)=0}}}

{{{ x(x+2)-4(x+2)=0}}}

{{{ (x-4)(x+2)=0}}}