Question 441831
{{{x^4+3x^3-8x-24=0}}}.....group

{{{(x^4+3x^3)-(8x+24)=0}}}

{{{(x^3(x+3))-8(x+3)=0}}}

{{{(x^3-8)(x+3)=0}}}

{{{(x^3-2^3)*(x+3)=0}}}......factor {{{(x^3-2^3)}}}.........


{{{x^3-2^3=(x-2)(x^2 + 2x + 4)}}}


{{{(x-2)(x^2 + 2x + 4)(x+3)=0}}}