rozwiaz nierownosc Bonak: x(2−x)(x+3)²≤0

pigor: ..., x(2−x)(x+3)2 ≤ 0 ⇔ −x(x−2)(x+3)² ≤ 0 /*(−1) ⇔ x(x−2)(x+3)² ≥ 0 ⇔ ⇔ x ≤ −3 v −3 ≤ x ≤ 0 v x ≥2 ⇔ x∊(−∞; 0> U <2;+∞) . ...