5. Calculaţi:
a) 2(3x²+x-2) + (-24x6): (-2x²)²-2(x - 5);
b) 3(2x²-x+4) + 3(x-5)+(-96x6): (-4x²)²;
c) 4[2x³ - 3x(x - 1)]-2x[x² + 1-3(x - 1)];
d) 2[3x²(x - 1)-x(x - 5)]-3x[2x(x + 1)+3].


Dau coroana, orice ​