Предмет: Алгебра, автор: stupakjason

знайдіть корені рівняння x2-9=0

Ответы

Автор ответа: vityamath

1

Ответ:

3 ; -3

Объяснение:

$x^{2} -9=0\\x^{2} =9\\x=3;-3$

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