Предмет: Алгебра, автор: Fantik474

Укажите промежуток, содержащие все корни уравнения
3^x^2-3x=81

Ответы

Автор ответа: kirichekov

0

$3^{ x^{2} -3x}=81 3^{ x^{2} -3x}= 3^{4}$
x²-3x=4
x²-3x-4=0
x₁=-1, x₂=4

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