Question 1134478

{{{3x^3+7x^2-15x+18}}} divided by {{{x+4 }}}


.....................({{{3x^2-5x+5}}}
{{{x+4 }}}..|{{{3x^3+7x^2-15x+18}}}
.....................{{{3x^3+12x^2}}}......subtract
..............................{{{-5x^2}}}...add {{{-15x}}}
..............................{{{-5x^2-15x}}}
..............................{{{-5x^2-20x}}}......subtract
..........................................{{{5x}}}...add {{{18}}}
..........................................{{{5x+18}}}
..........................................{{{5x+20}}}......subtract
.................................................{{{-2}}}=>reminder

{{{3x^3+7x^2-15x+18=(3x^2-5x+5)(x+4)-2}}}