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

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


Simplifying
x5 + 2x3 + -4x = 0

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

Solving
-4x + 2x3 + x5 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(-4 + 2x2 + x4) = 0

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 '(-4 + 2x2 + x4)' equal to zero and attempt to solve: Simplifying -4 + 2x2 + x4 = 0 Solving -4 + 2x2 + x4 = 0 Begin completing the square. Move the constant term to the right: Add '4' to each side of the equation. -4 + 2x2 + 4 + x4 = 0 + 4 Reorder the terms: -4 + 4 + 2x2 + x4 = 0 + 4 Combine like terms: -4 + 4 = 0 0 + 2x2 + x4 = 0 + 4 2x2 + x4 = 0 + 4 Combine like terms: 0 + 4 = 4 2x2 + x4 = 4 The x term is 2x2. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2x2 + 1 + x4 = 4 + 1 Reorder the terms: 1 + 2x2 + x4 = 4 + 1 Combine like terms: 4 + 1 = 5 1 + 2x2 + x4 = 5 Factor a perfect square on the left side: (x2 + 1)(x2 + 1) = 5 Calculate the square root of the right side: 2.236067978 Break this problem into two subproblems by setting (x2 + 1) equal to 2.236067978 and -2.236067978.

Subproblem 1

x2 + 1 = 2.236067978 Simplifying x2 + 1 = 2.236067978 Reorder the terms: 1 + x2 = 2.236067978 Solving 1 + x2 = 2.236067978 Solving for variable 'x'. 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 = 2.236067978 + -1 Combine like terms: 1 + -1 = 0 0 + x2 = 2.236067978 + -1 x2 = 2.236067978 + -1 Combine like terms: 2.236067978 + -1 = 1.236067978 x2 = 1.236067978 Simplifying x2 = 1.236067978 Take the square root of each side: x = {-1.111785941, 1.111785941}

Subproblem 2

x2 + 1 = -2.236067978 Simplifying x2 + 1 = -2.236067978 Reorder the terms: 1 + x2 = -2.236067978 Solving 1 + x2 = -2.236067978 Solving for variable 'x'. 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 = -2.236067978 + -1 Combine like terms: 1 + -1 = 0 0 + x2 = -2.236067978 + -1 x2 = -2.236067978 + -1 Combine like terms: -2.236067978 + -1 = -3.236067978 x2 = -3.236067978 Simplifying x2 = -3.236067978 Reorder the terms: 3.236067978 + x2 = -3.236067978 + 3.236067978 Combine like terms: -3.236067978 + 3.236067978 = 0.000000000 3.236067978 + x2 = 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. This subproblem is being ignored because a solution could not be determined.

Solution

x = {0}

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