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ира633
@ира633
December 2021
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7икс-(икс+3)(2икс-1) памогите
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irinaorlova2
4х-(х+3)(2х-1)=4х-(2х²-х+6х-3)=4х-2х²-5х+3=-2х²-х+3=-(х+1)(х-1.5)
D=(-1)²-4*(-2)*3=25
Х1=1-5\-4=1
Х2=1+5\-4=-6\4=-1.5
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BaXiNi
Вроде так .................
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Answers & Comments
D=(-1)²-4*(-2)*3=25
Х1=1-5\-4=1
Х2=1+5\-4=-6\4=-1.5