Предмет: Алгебра, автор: DemonNotFound

Подайте у вигляді многочлена вираз:
(7х³+5х²-9)-(9х³+х²-4)

Ответы

Автор ответа: lusa246

1

Ответ:

=7x³+5x²-9-9x³-x²+4=-2x³+4x²-5

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