Объяснение:
a)x²+6x+8
Д=6²–4*1*8=36–32=4
х(1)=
х(2)=
б)x²-8x+15
Д=(–8)²–4*1*15=64–60=4
в)x²+3x+2
Д=3²–4*1*2=9–8=1
г)x²-5x+6
Д=(–5)²–4*1*6=25–24=1
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Объяснение:
a)x²+6x+8
Д=6²–4*1*8=36–32=4
х(1)=
х(2)=
б)x²-8x+15
Д=(–8)²–4*1*15=64–60=4
х(1)=
х(2)=
в)x²+3x+2
Д=3²–4*1*2=9–8=1
х(1)=
х(2)=
г)x²-5x+6
Д=(–5)²–4*1*6=25–24=1
х(1)=
х(2)=