x^3-3x=(46/27)

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Solution for x^3-3x=(46/27) equation:


x in (-oo:+oo)

x^3-(3*x) = 46/27 // - 46/27

x^3-(3*x)-(46/27) = 0

x^3-3*x-46/27 = 0

x^3-3*x-46/27 = 0

x^3-3*x-46/27 = 0 // * 0

{ 1, -1, 2, -2, 23, -23, 46, -46 }

1

x = 1

27*x^3-81*x-46 = -100

1

-1

x = -1

27*x^3-81*x-46 = 8

-1

2

x = 2

27*x^3-81*x-46 = 8

2

-2

x = -2

27*x^3-81*x-46 = -100

-2

23

x = 23

27*x^3-81*x-46 = 326600

23

-23

x = -23

27*x^3-81*x-46 = -326692

-23

46

x = 46

27*x^3-81*x-46 = 2624300

46

-46

x = -46

27*x^3-81*x-46 = -2624392

-46

{ 1/3, -1/3, 1/9, -1/9, 1/27, -1/27, -1/3, 1/3, -1/9, 1/9, -1/27, 1/27, 2/3, -2/3, 2/9, -2/9, 2/27, -2/27, -2/3, 2/3, -2/9, 2/9, -2/27, 2/27, 23/3, -23/3, 23/9, -23/9, 23/27, -23/27, -23/3, 23/3, -23/9, 23/9, -23/27, 23/27, 46/3, -46/3, 46/9, -46/9, 46/27, -46/27, -46/3, 46/3, -46/9, 46/9, -46/27, 46/27 }

1/3

x

1/3

27*x^3-81*x-46 = -72

1/3

-1/3

x

-1/3

27*x^3-81*x-46 = -20

-1/3

1/9

x

1/9

27*x^3-81*x-46 = -54.96296296

1/9

-1/9

x

-1/9

27*x^3-81*x-46 = -37.03703704

-1/9

1/27

x

1/27

27*x^3-81*x-46 = -48.99862826

1/27

-1/27

x

-1/27

27*x^3-81*x-46 = -43.00137174

-1/27

-1/3

x

-1/3

27*x^3-81*x-46 = -20

-1/3

1/3

x

1/3

27*x^3-81*x-46 = -72

1/3

-1/9

x

-1/9

27*x^3-81*x-46 = -37.03703704

-1/9

1/9

x

1/9

27*x^3-81*x-46 = -54.96296296

1/9

-1/27

x

-1/27

27*x^3-81*x-46 = -43.00137174

-1/27

1/27

x

1/27

27*x^3-81*x-46 = -48.99862826

1/27

2/3

x

2/3

27*x^3-81*x-46 = -92

2/3

-2/3

x

-2/3

27*x^3-81*x-46 = 0

-2/3

x+2/3

27*x^2-18*x-69

27*x^3-81*x-46

x+2/3

-27*x^3-18*x^2

-18*x^2-81*x-46

18*x^2+12*x

-69*x-46

69*x+46

0

27*x^2-18*x-69 = 0

DELTA = (-18)^2-(-69*4*27)

DELTA = 7776

DELTA > 0

x = (7776^(1/2)+18)/(2*27) or x = (18-7776^(1/2))/(2*27)

x = (36*6^(1/2)+18)/54 or x = (18-36*6^(1/2))/54

x in { (18-36*6^(1/2))/54, (36*6^(1/2)+18)/54, -2/3}

x in { (18-36*6^(1/2))/54, (36*6^(1/2)+18)/54, -2/3 }

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