Предмет: Математика, автор: ivan65ivan

найти отрицательный корень уравнения: х в квадрате-х-6=0

Ответы

Автор ответа: yakushina116

х²-х-6=0
D=1-4*(-6)=1+24=25
√D=+ - 5
x₁= (1-5):2=-4:2=-2
x₂=(1+5):2=3
Отрицательный корень : -2

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