Предмет: Алгебра, автор: WhyDoIExist111

нужна помощь, пожалуйтса не в тетради. У меня тест на компе.

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ТатМих: второй снизу

Ответы

Автор ответа: eralashka02
0

Ответ:

(1/7c-3/5d)×(1/7c+3/5d)=(1/7c)^2-(3/5d)^2=1/49c^2-9/25d^2

ТатМих: верный ответ, зачем отмечаете
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