Предмет: Алгебра, автор: Аноним

Упростить выражение и найти его значение. Алгебра 9 класс.

Приложения:

Ответы

Автор ответа: elena3317
0

Ответ:

\frac{(\sqrt{y}+1)*(y^{2}-\sqrt{y} )  }{y\sqrt{y}+y+\sqrt{y}  } = \frac{(\sqrt{y}+1)*\sqrt{y}*(y\sqrt{y}-1)   }{\sqrt{y}(y+\sqrt{y} +1) } = \frac{(\sqrt{y}+1)*(\sqrt{y}-1)*(y+\sqrt{y}+1) }{y+\sqrt{y}+1 } = (\sqrt{y}+1)*(\sqrt{y}-1) = y-1\\\\y=5\\y-1=5-1=4

Объяснение:

смотрите внимательнее, я не стала писать вначале условия задачи, сразу начала решение

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