Предмет: Алгебра, автор: amazurenko507

найдите значение выражения (y-4)²+2(y-9) при y=0,1​

Ответы

Автор ответа: matilda17562
29

Ответ:

-2,59.

Объяснение:

(y-4)²+2(y-9) = у² - 8у + 16 + 2у - 18 = у² - 6у - 2.

Если у = 0,1, то

0,1² - 6•0,1 - 2 = 0,01 - 0,6 - 2 = 0,01 - 2,6 = - 2,59.

Или так:

(0,1-4)²+2(0,1-9) = 15,21 - 17,8 = - 2,59.

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