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mashasnyrova
@mashasnyrova
July 2022
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Помогите пожалуйста!!! Алгебра 9 класс
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Verified answer
(x + 2)² + (x - 4)² ≥ 2x²
x² + 4x + 4 + x² - 8x + 16 ≥ 2x²
-4x + 2x² + 20 ≥ 2x²
4x ≤ 20
x ≤ 5
Ответ: x ∈ (-∞; 5].
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Verified answer
(x + 2)² + (x - 4)² ≥ 2x²x² + 4x + 4 + x² - 8x + 16 ≥ 2x²
-4x + 2x² + 20 ≥ 2x²
4x ≤ 20
x ≤ 5
Ответ: x ∈ (-∞; 5].