Решение и ответ:
(x + 2) ²＝4x + 5
x² + 4x + 4 = 4x + 5
x² + 4x - 4x = 5 - 4
x² = 1
x = ± √1
x₁ = 1
x₂ = -1
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Answers & Comments
Решение и ответ:
(x + 2) ²＝4x + 5
x² + 4x + 4 = 4x + 5
x² + 4x - 4x = 5 - 4
x² = 1
x = ± √1
x₁ = 1
x₂ = -1