Решите уравнения:
а) (2x + 1)(x – 3) = –6;
б) (x + 3)2 – 5x(x – 2) = 10 ∙ (2x + 1);
в) –2x(x – 1) = 5.
а) (2x + 1)(x – 3) = –6;
б) (x + 3)2 – 5x(x – 2) = 10 ∙ (2x + 1);
в) –2x(x – 1) = 5.
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