Разложи на множители: 9x2+18xy+9y2 .
Известно, что один множитель разложения равен x + y .
за ответ
Pidoraser
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11.04.2020 09:39
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1
Объяснение:
1) Умножили числа
18+18ху+18у
2)Разложили на множители , вынесли 18 за скобки
18(1+ху+у)
9(x-y) (x-y)
Объяснение:
9x^2-18xy+9y^2= 9 (x^2-2xy+y^2) =
= 9 (x-y) ^2= 9(x-y) (x-y)
Если при x - y
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