Предмет: Алгебра, автор: 12matveev1999

укажите наибольший корень уравнения 4х2-3х-7=0

Ответы

Автор ответа: julyap

$4 x^{2} -3x-7=0 \\ D=9+112=121 \\ \sqrt{D} =11 \\ x_{1} = \frac{3+11}{8} = \frac{14}{8} =1.75 \\ x_{2} = \frac{3-11}{8} =- \frac{8}{8} =-1 \\ \\$

1.75 наибольший корень уравнения

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