x^6-x^3=27

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Solution for x^6-x^3=27 equation:


Simplifying
x6 + -1x3 = 27

Reorder the terms:
-1x3 + x6 = 27

Solving
-1x3 + x6 = 27

Solving for variable 'x'.

Reorder the terms:
-27 + -1x3 + x6 = 27 + -27

Combine like terms: 27 + -27 = 0
-27 + -1x3 + x6 = 0

Begin completing the square.

Move the constant term to the right:

Add '27' to each side of the equation.
-27 + -1x3 + 27 + x6 = 0 + 27

Reorder the terms:
-27 + 27 + -1x3 + x6 = 0 + 27

Combine like terms: -27 + 27 = 0
0 + -1x3 + x6 = 0 + 27
-1x3 + x6 = 0 + 27

Combine like terms: 0 + 27 = 27
-1x3 + x6 = 27

The x term is -1x3.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x3 + 0.25 + x6 = 27 + 0.25

Reorder the terms:
0.25 + -1x3 + x6 = 27 + 0.25

Combine like terms: 27 + 0.25 = 27.25
0.25 + -1x3 + x6 = 27.25

Factor a perfect square on the left side:
(x3 + -0.5)(x3 + -0.5) = 27.25

Calculate the square root of the right side: 5.220153254

Break this problem into two subproblems by setting 
(x3 + -0.5) equal to 5.220153254 and -5.220153254.

Subproblem 1

x3 + -0.5 = 5.220153254 Simplifying x3 + -0.5 = 5.220153254 Reorder the terms: -0.5 + x3 = 5.220153254 Solving -0.5 + x3 = 5.220153254 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x3 = 5.220153254 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x3 = 5.220153254 + 0.5 x3 = 5.220153254 + 0.5 Combine like terms: 5.220153254 + 0.5 = 5.720153254 x3 = 5.720153254 Simplifying x3 = 5.720153254 Reorder the terms: -5.720153254 + x3 = 5.720153254 + -5.720153254 Combine like terms: 5.720153254 + -5.720153254 = 0.000000000 -5.720153254 + 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 + -0.5 = -5.220153254 Simplifying x3 + -0.5 = -5.220153254 Reorder the terms: -0.5 + x3 = -5.220153254 Solving -0.5 + x3 = -5.220153254 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x3 = -5.220153254 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x3 = -5.220153254 + 0.5 x3 = -5.220153254 + 0.5 Combine like terms: -5.220153254 + 0.5 = -4.720153254 x3 = -4.720153254 Simplifying x3 = -4.720153254 Reorder the terms: 4.720153254 + x3 = -4.720153254 + 4.720153254 Combine like terms: -4.720153254 + 4.720153254 = 0.000000000 4.720153254 + 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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