Question 462870

{{{x^3-8x^2+11x+20}}}......replace {{{-8x^2}}} with {{{-5x^2-4x^2+x^2}}} and {{{11x}}} with {{{20x-5x-4x}}}


{{{x^3-5x^2-4x^2+x^2+20x-5x-4x+20}}}.....group


{{{(x^3-5x^2)-(4x^2-20x)+(x^2-5x)-(4x-20)}}}


{{{x^2(x-5)-4x(x-5)+x(x-5)-4(x-5)}}}


{{{(x^2-4x+x-4)(x-5)}}}


{{{((x^2-4x)+(x-4))(x-5)}}}


{{{(x(x-4)+(x-4))(x-5)}}}


{{{(x+1)(x-4)(x-5)}}}