z^6-6z^3+2=0

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Solution for z^6-6z^3+2=0 equation:


Simplifying
z6 + -6z3 + 2 = 0

Reorder the terms:
2 + -6z3 + z6 = 0

Solving
2 + -6z3 + z6 = 0

Solving for variable 'z'.

Begin completing the square.

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -6z3 + -2 + z6 = 0 + -2

Reorder the terms:
2 + -2 + -6z3 + z6 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -6z3 + z6 = 0 + -2
-6z3 + z6 = 0 + -2

Combine like terms: 0 + -2 = -2
-6z3 + z6 = -2

The z term is -6z3.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6z3 + 9 + z6 = -2 + 9

Reorder the terms:
9 + -6z3 + z6 = -2 + 9

Combine like terms: -2 + 9 = 7
9 + -6z3 + z6 = 7

Factor a perfect square on the left side:
(z3 + -3)(z3 + -3) = 7

Calculate the square root of the right side: 2.645751311

Break this problem into two subproblems by setting 
(z3 + -3) equal to 2.645751311 and -2.645751311.

Subproblem 1

z3 + -3 = 2.645751311 Simplifying z3 + -3 = 2.645751311 Reorder the terms: -3 + z3 = 2.645751311 Solving -3 + z3 = 2.645751311 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + z3 = 2.645751311 + 3 Combine like terms: -3 + 3 = 0 0 + z3 = 2.645751311 + 3 z3 = 2.645751311 + 3 Combine like terms: 2.645751311 + 3 = 5.645751311 z3 = 5.645751311 Simplifying z3 = 5.645751311 Reorder the terms: -5.645751311 + z3 = 5.645751311 + -5.645751311 Combine like terms: 5.645751311 + -5.645751311 = 0.000000000 -5.645751311 + z3 = 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

z3 + -3 = -2.645751311 Simplifying z3 + -3 = -2.645751311 Reorder the terms: -3 + z3 = -2.645751311 Solving -3 + z3 = -2.645751311 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + z3 = -2.645751311 + 3 Combine like terms: -3 + 3 = 0 0 + z3 = -2.645751311 + 3 z3 = -2.645751311 + 3 Combine like terms: -2.645751311 + 3 = 0.354248689 z3 = 0.354248689 Simplifying z3 = 0.354248689 Reorder the terms: -0.354248689 + z3 = 0.354248689 + -0.354248689 Combine like terms: 0.354248689 + -0.354248689 = 0.000000000 -0.354248689 + z3 = 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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