14 Efec
uceţi termenii asemenea:
a) (x+2)(x+3)-x²(3x+2)+(3x² + 2)(x+2)-4;
b) (x+5)(2x-3)-2x(x + 4) + (x-2)(x-3);
c) (3x + 1)(x-4)-3x(x-4)-(x+3)(x + 4);
d) (x + 4)(2x + 5) + (2x+3)(x + 1)-4x(x + 2).
Urgent dau coroana