Предмет: Математика, автор: Сабина2408

5. Найдите корни уравнения (2,5у -4)(6у+1,8) = 0

Ответы

Автор ответа: andreykrm

2,5у-4=0 или 6у+1,8=0
2,5у=4 6у=-1,8
у=4/2,5 у=-1,8/6
у=1,6 у= -0,3
Ответ у=1,6 у=-0,3

Автор ответа: Krismas9988

(2,5у-4)(6у+1,8)=0
15у^2-24у+4,5у-7,2=0
15у^2-19,5у-7.2=0
у^2- это игрек в квадрате,а дальше через дискриминант

Автор ответа: Сабина2408

мы такое не прах ожили

Автор ответа: Сабина2408

мы такое не проходили

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