Предмет: Математика, автор: anzhela90

2x(в квадрате) -7x+4x-14=0

Ответы

Автор ответа: warwas

2х(в кв)-3х-14=0
Д=9+112=121=11(в кв)
х1=3-11/4=-2
х2=3+11/4=3.5

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