0=2x^5-4x^3-6x

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Solution for 0=2x^5-4x^3-6x equation:


Simplifying
0 = 2x5 + -4x3 + -6x

Reorder the terms:
0 = -6x + -4x3 + 2x5

Solving
0 = -6x + -4x3 + 2x5

Solving for variable 'x'.
Remove the zero:
6x + 4x3 + -2x5 = -6x + -4x3 + 2x5 + 6x + 4x3 + -2x5

Reorder the terms:
6x + 4x3 + -2x5 = -6x + 6x + -4x3 + 4x3 + 2x5 + -2x5

Combine like terms: -6x + 6x = 0
6x + 4x3 + -2x5 = 0 + -4x3 + 4x3 + 2x5 + -2x5
6x + 4x3 + -2x5 = -4x3 + 4x3 + 2x5 + -2x5

Combine like terms: -4x3 + 4x3 = 0
6x + 4x3 + -2x5 = 0 + 2x5 + -2x5
6x + 4x3 + -2x5 = 2x5 + -2x5

Combine like terms: 2x5 + -2x5 = 0
6x + 4x3 + -2x5 = 0

Factor out the Greatest Common Factor (GCF), '2x'.
2x(3 + 2x2 + -1x4) = 0

Factor a trinomial.
2x((3 + -1x2)(1 + x2)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(3 + -1x2)' equal to zero and attempt to solve: Simplifying 3 + -1x2 = 0 Solving 3 + -1x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x2 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x2 = 0 + -3 -1x2 = 0 + -3 Combine like terms: 0 + -3 = -3 -1x2 = -3 Divide each side by '-1'. x2 = 3 Simplifying x2 = 3 Take the square root of each side: x = {-1.732050808, 1.732050808}

Subproblem 3

Set the factor '(1 + x2)' equal to zero and attempt to solve: Simplifying 1 + x2 = 0 Solving 1 + x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x2 = 0 + -1 x2 = 0 + -1 Combine like terms: 0 + -1 = -1 x2 = -1 Simplifying x2 = -1 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Solution

x = {0, -1.732050808, 1.732050808}

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