Question 917029


{{{x^2+3x-4 }}} ....write {{{3x}}} as {{{-x+4x}}}


{{{x^2-x+4x-4 }}} ...group


{{{(x^2-x)+(4x-4 )}}} ..factor


{{{x(x-1)+4(x-1 )}}}


{{{(x+4)(x-1 )}}}