DAU COROANA!!!!!
(-x²-3)×(3+x)-(x+7)×(x²+2)=?
Va rog rapid !


Răspuns :

(-x²-3)×(3+x)-(x+7)×(x²+2)=
=-3x²-9-x³-3x-x³-7x²-2x-14=
=-10x²-2x³-5x-23
= -10x²-2x³-23-5x................