Памагите
[tex] \sqrt{5} + \sqrt{x - 1} = 3 \: \: [/tex]
С ОДЗ ни в какую
[tex] \sqrt{5} + \sqrt{x - 1} = 3 \: \: [/tex]
С ОДЗ ни в какую
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√5 + √(x - 1) = 3
одз x ≥ 1
√(x - 1) = 3 - √5
x - 1 = (3 - √5)²
x = 1 + 9 - 6√5 + 5 = 15 - 6√5