Предмет: Алгебра, автор: tetananebrat

513.Спростіть вираз
a) 9x²y*(-0,5x²y);
б) (-0,5ab³)*(-24a²b³).
СРОЧНО!!!ДАЮ 20 БАЛОВ ЗА ПРИВИЛЬНУ ВІДПОВІДЬ​

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Автор ответа: kseniaveres449
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