Вопрос школьника по предмету Алгебра
Представить в виде многочлена стандартного вида выражения (a+3)²+(a-3)+6a
Ответ учителя по предмету Алгебра
(a+3)(в кубе) +(a-3)(a+3)+6a=(а+3)(a^2+6a+9+a-3)+6a=(а+3)(a^2+7a+6)+6a=a^3+7a^2+6a+3a^2+21a+18+6a=a^3+10a^2+33a+18
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