Корнями какого квадратного уравнения являются числа 2+корень3 и 2- корень 3 ?
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18.09.2019 07:00
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3
x₁+x₂=-b
2+√3+2-√3=-b
b=-4
x₁*x₂=c
(2+√3)(2-√3)=c
c=4-3
c=1
x²-4x+1=0