Предмет: Алгебра, автор: tanyamikhaelis

найдите значение выражений а²-36/5а²-30а при а=7,5

Ответы

Автор ответа: JooKeeR

1

7.5^2-36/5*(7.5)^2-30*7.5
получается
20.25/56.25=0.36
Просто подставил не сокращал может кто умнее поступит.

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