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Анеличка27
@Анеличка27
July 2022
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93931
4/x + 5 = 1/x²
4x/x² + 5x²/x² = 1/x²
4x+5x² = 1
5x²+4x-1 = 0
a=5 ; b=4 ; c=-1
D=√16+20=√36=6.
-4+6 2
x₁ = ______ = _____ =
0,2.
10 10
-4-6 -10
x₂ = ______ = _____ =
-1.
10 10
Ответ : -1 ; 0,2.
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Answers & Comments
4x/x² + 5x²/x² = 1/x²
4x+5x² = 1
5x²+4x-1 = 0
a=5 ; b=4 ; c=-1
D=√16+20=√36=6.
-4+6 2
x₁ = ______ = _____ = 0,2.
10 10
-4-6 -10
x₂ = ______ = _____ = -1.
10 10
Ответ : -1 ; 0,2.