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roza0551
@roza0551
August 2022
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Помогите пожалуйста:(
[tex] x^{2} -7=0[/tex]
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Universalka
Verified answer
X² - 7 = 0
x² - (√7)² = 0
(x - √7)(x + √7) = 0
или x - √7 = 0 или x + √7 = 0
x₁ = √7 x₂ = - √7
Ответ: - √7 ; √7
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Answers & Comments
Verified answer
X² - 7 = 0x² - (√7)² = 0
(x - √7)(x + √7) = 0
или x - √7 = 0 или x + √7 = 0
x₁ = √7 x₂ = - √7
Ответ: - √7 ; √7