Ответ:
х²-3х+2=0
D=9-8=1
х1=3+1/2=2
х2=3-1/2=1
1/х=2х+1 |*х≠0
1-2х²-х=0 |*(-1)
2х²+х-1=0
D=1+8=9
х1= -1+3/4=0,5
х2= -1-3/4= -1
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Ответ:
х²-3х+2=0
D=9-8=1
х1=3+1/2=2
х2=3-1/2=1
1/х=2х+1 |*х≠0
1-2х²-х=0 |*(-1)
2х²+х-1=0
D=1+8=9
х1= -1+3/4=0,5
х2= -1-3/4= -1