Предмет: Алгебра, автор: mary251200

(2x+3)(x-4)< xв квадрате+4х-12 помогите пожалуйста срочно нужно...

Ответы

Автор ответа: manyny06

решение смотри на фотографии

Приложения:

Автор ответа: KarinaYouchi

(2x+3)(x-4)<x^2+4x-12
2x^2-8x+3x-12<x^2+4x-12
2x^2-x^2-8x+3x-4x<-12+12
x^2-9x<0
x^2-9x=0
x(x-9)=0
x1=0 x-9=0
x2=9

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