Ответ:
√(х² - 1) = √3
(√(х² - 1))² = (√3)²
х² - 1 = 3
х² = 3 + 1
х² = 4
х = 2
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Ответ:
√(х² - 1) = √3
(√(х² - 1))² = (√3)²
х² - 1 = 3
х² = 3 + 1
х² = 4
х = 2