Ответ:
(3х-4) (x+1) -(3-2х) ²=3х²+3х-4х-4+9+4х²= 7х²-1х+5
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Ответ:
(3х-4) (x+1) -(3-2х) ²=3х²+3х-4х-4+9+4х²= 7х²-1х+5