(x - 1) (x + 2) < x² - 3x + 11
х²+2х-х-2<x² - 3x + 11
2х-х-2<-3х+11
х+3х<11+2
4х<13
х<13/4 ; х<3 1/4
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(x - 1) (x + 2) < x² - 3x + 11
х²+2х-х-2<x² - 3x + 11
2х-х-2<-3х+11
х+3х<11+2
4х<13
х<13/4 ; х<3 1/4