x^6-3x^3-3=0

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Solution for x^6-3x^3-3=0 equation:


Simplifying
x6 + -3x3 + -3 = 0

Reorder the terms:
-3 + -3x3 + x6 = 0

Solving
-3 + -3x3 + x6 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + -3x3 + 3 + x6 = 0 + 3

Reorder the terms:
-3 + 3 + -3x3 + x6 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -3x3 + x6 = 0 + 3
-3x3 + x6 = 0 + 3

Combine like terms: 0 + 3 = 3
-3x3 + x6 = 3

The x term is -3x3.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3x3 + 2.25 + x6 = 3 + 2.25

Reorder the terms:
2.25 + -3x3 + x6 = 3 + 2.25

Combine like terms: 3 + 2.25 = 5.25
2.25 + -3x3 + x6 = 5.25

Factor a perfect square on the left side:
(x3 + -1.5)(x3 + -1.5) = 5.25

Calculate the square root of the right side: 2.291287847

Break this problem into two subproblems by setting 
(x3 + -1.5) equal to 2.291287847 and -2.291287847.

Subproblem 1

x3 + -1.5 = 2.291287847 Simplifying x3 + -1.5 = 2.291287847 Reorder the terms: -1.5 + x3 = 2.291287847 Solving -1.5 + x3 = 2.291287847 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x3 = 2.291287847 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x3 = 2.291287847 + 1.5 x3 = 2.291287847 + 1.5 Combine like terms: 2.291287847 + 1.5 = 3.791287847 x3 = 3.791287847 Simplifying x3 = 3.791287847 Reorder the terms: -3.791287847 + x3 = 3.791287847 + -3.791287847 Combine like terms: 3.791287847 + -3.791287847 = 0.000000000 -3.791287847 + x3 = 0.000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined.

Subproblem 2

x3 + -1.5 = -2.291287847 Simplifying x3 + -1.5 = -2.291287847 Reorder the terms: -1.5 + x3 = -2.291287847 Solving -1.5 + x3 = -2.291287847 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x3 = -2.291287847 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x3 = -2.291287847 + 1.5 x3 = -2.291287847 + 1.5 Combine like terms: -2.291287847 + 1.5 = -0.791287847 x3 = -0.791287847 Simplifying x3 = -0.791287847 Reorder the terms: 0.791287847 + x3 = -0.791287847 + 0.791287847 Combine like terms: -0.791287847 + 0.791287847 = 0.000000000 0.791287847 + x3 = 0.000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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