1. а)5 + 4х = 1 б) 12 - 1 = -4х
в) (2х - 1) (2х + 1) + х (х-1) = 2х (х+1)
г) (2 x + 1)2} [/tex] + 2 = 2 - 6
в) (2х - 1) (2х + 1) + х (х-1) = 2х (х+1)
г) (2 x + 1)2} [/tex] + 2 = 2 - 6
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