Ответ:
X₁ = 1, X₂ = -3, X₃ = -3
Объяснение:
X^3 + 5X^2 + 3X - 9 = 0
Методом подбора X₁ = 1
( X^3 + 5x^2 + 3X - 9 ) : (X - 1) = X^2 + 6X + 9
X^2 + 6X + 9 = 0
( X + 3 )^2 = 0
X + 3 = 0
X₂ = -3
X₃ = -3
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Answers & Comments
Ответ:
X₁ = 1, X₂ = -3, X₃ = -3
Объяснение:
X^3 + 5X^2 + 3X - 9 = 0
Методом подбора X₁ = 1
( X^3 + 5x^2 + 3X - 9 ) : (X - 1) = X^2 + 6X + 9
X^2 + 6X + 9 = 0
( X + 3 )^2 = 0
X + 3 = 0
X₂ = -3
X₃ = -3