-(v-5)³-(v+2)(v+3)=-(v³-15v²+75v-125)-(v²+3v+2v+6)=-(v³-15v²+75v-125)-(v²+5v+6)=-v³+15v²-75v+125-v²-5v-6=-v³+14v²-80v+119
-(v-5)³-(v+2)(v+3)=-(v³-15v²+75v-125)-(v²+3v+2v+6)=-(v³-15v²+75v-125)-(v²+5v+6)=-v³+15v²-75v+125-v²-5v-6=-v³+14v²-80v+119