Решите уравнение:
а) х²(х + 2) – х (х+1)²=5х+9
Б) (у - 3)² + 3(у + 2)(у - 2)=9+4у²
а) х²(х + 2) – х (х+1)²=5х+9
Б) (у - 3)² + 3(у + 2)(у - 2)=9+4у²
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