Question 549898

{{{8X^2+9X+2}}}-({{{2X^2+5X+3}}} + {{{2X^2+3}}}) 


{{{8X^2+9X+2}}}-({{{4X^2+5X+6}}}


{{{8X^2+9X+2-4X^2-5X-6}}}

{{{4x^2+4x-4}}} is the third side