Ответ:
2a + b + 2a² + ab = 2 × ( - 3 ) + 4 + 2 × ( - 3 )² + ( - 3 ) × 4 = - 6 + 4 + 18 - 12 = 4
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Ответ:
2a + b + 2a² + ab = 2 × ( - 3 ) + 4 + 2 × ( - 3 )² + ( - 3 ) × 4 = - 6 + 4 + 18 - 12 = 4