Question 481015


{{{x^2 + 6x= 16}}}

{{{x^2 + 6x-16=0}}}...replace {{{6x}}} with {{{-2x+8x}}}

{{{x^2 -2x+ 8x-16=0}}}...group first two terms and second two terms together

{{{(x^2 -2x)+ (8x-16)=0}}}

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

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