х^2-6х+7=0
D= 36- 4×7= 8
x1= (6+√8)/2 = 3+√2
х2= (6-√8)/2= 3-√2
Ответ: х1= 3+√2 ; х2= 3-√2
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х^2-6х+7=0
D= 36- 4×7= 8
x1= (6+√8)/2 = 3+√2
х2= (6-√8)/2= 3-√2
Ответ: х1= 3+√2 ; х2= 3-√2