Х^2 -2х-8 =0
Решаем через дискриминант:
Д= 4-4*(-8) =36 = 6^2
Х1 =( 2-6):2= -2
Х2 = (2+6) :2 = 4
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Х^2 -2х-8 =0
Решаем через дискриминант:
Д= 4-4*(-8) =36 = 6^2
Х1 =( 2-6):2= -2
Х2 = (2+6) :2 = 4