(2x^3-1.6X)/(x^2-1)

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Solution for (2x^3-1.6X)/(x^2-1) equation: 


D( x )

x^2-1 = 0

x^2-1 = 0

x^2-1 = 0

1*x^2 = 1 // : 1

x^2 = 1

x^2 = 1 // ^ 1/2

abs(x) = 1

x = 1 or x = -1

x in (-oo:-1) U (-1:1) U (1:+oo)

(2*x^3-(1.6*X))/(x^2-1) = 0

(2*x^3-1.6*X)/(x^2-1) = 0

2*x^3 = -(-1.6*X) // : 2

x^3 = 0.8*X

x^3 = 0.8*X // ^ 1/3

x = 0.8^(1/3)*X^(1/3)

x = 0.8^(1/3)*X^(1/3)

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