Предмет: Алгебра, автор: powerfals2020

Знайдіть значення виразу (m-3)в квадраті - (m-2)(m+2) при m= -2.5

Ответы

Автор ответа: Аноним

0

Відповідь:

-15

Пояснення:

(m-3)^2 - (m-2)(m+2) = m^2 - 2*3*m + 9 - m^2 + 4 = 6*m +9

6*m +9 = 6*(-2.5) = -15

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