Ответ:
3
Объяснение:
x²-9x+18=0
D= 81-72= 9
x1= (9+3)/2= 6
x2= (9-3)/2= 3
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Ответ:
3
Объяснение:
x²-9x+18=0
D= 81-72= 9
x1= (9+3)/2= 6
x2= (9-3)/2= 3