Объяснение:
1)2х²-5х+2=0
D=25-16=9
√D=3
x1=(5+3)/4=8/4=2
x2=(5-3)/4=2/4=1/2=0.5
2)12x²-17x+6=0
D=289-288=1
√D=1
x1=(17-1)/24=2/3
x2=(17+1)/24=3/4=0.75
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Объяснение:
1)2х²-5х+2=0
D=25-16=9
√D=3
x1=(5+3)/4=8/4=2
x2=(5-3)/4=2/4=1/2=0.5
2)12x²-17x+6=0
D=289-288=1
√D=1
x1=(17-1)/24=2/3
x2=(17+1)/24=3/4=0.75