(8x^4-1)/(2x^3-9)

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Solution for (8x^4-1)/(2x^3-9) equation: 


D( x )

2*x^3-9 = 0

2*x^3-9 = 0

2*x^3-9 = 0

2*x^3 = 9 // : 2

x^3 = 9/2

x^3 = 9/2 // ^ 1/3

x = (9/2)^(1/3)

x in (-oo:(9/2)^(1/3)) U ((9/2)^(1/3):+oo)

(8*x^4-1)/(2*x^3-9) = 0

8*x^4 = 1 // : 8

x^4 = 1/8

x^4 = 1/8 // ^ 1/4

abs(x) = (1/8)^(1/4)

x = (1/8)^(1/4) or x = -(1/8)^(1/4)

x in { (1/8)^(1/4), -(1/8)^(1/4) }

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