УМОЛЯЮ НОМЕР 2!!!!!!!!!!!!!!!

Question

УМОЛЯЮ НОМЕР 2!!!!!!!!!!!!!!!

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Answer 1

2х²+3х=0
х(2х+3)=0
2х+3=0
2х=-3
х=-1,5

х²-4х-5=0
Д=16+20=36
Х1=(4+6)/2=5
Х2=(4-6)/2= -1