Ответы на вопрос:
–(4 – 2a)² – (3a – 2)(6 – a) + a² = –(16 – 16a + 4a²) – (18a – 3a² – 12 + 2a) + a² = –16 + 16a – 4a² – 18a + 3a² + 12 – 2a + a² = (–4a² + 3a² + a²) + (16a – 18a – 2a) + (–16 + 12) = –4a – 4
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