Предмет: Алгебра, автор: sovmestka56565

Запишіть у вигляді многочлена стандартного вигляду

(5a - 0,2b)2

Розкладіть на множники

81y-1

Ответы

Автор ответа: Cuterooo
0

(5a - 0,2b)2 = (5a)2 - 2(5a)(0,2b) + (0,2b)2 = 25a2 - 2ab + 0,04b2

81y-1 = (9y)-1(9y)4 = (1/9)y-1(81y4)

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