PE Aprofundare
şi performanţă
9. Calculaţi:
{a) 2x + 2[4x²(3x + 2) + 2x²(x + 3)] : (-14x²); +
b) (50x): (-5x³)² + [6x²(x + 2)-2x²(x²-3x)] : (-2x³);
c) (x + 5)(3x-2)-2x(x + 7) + (x-3)(x + 4);
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d) (3x + 2)(x-5)-4x(x-6)-(x+4)(x+6);
e) (x+6)(2x - 3) + (4x + 3)(x + 2)-(3x + 5)(x + 2).