21x^3=13x^3-2x

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Solution for 21x^3=13x^3-2x equation:


Simplifying
21x3 = 13x3 + -2x

Reorder the terms:
21x3 = -2x + 13x3

Solving
21x3 = -2x + 13x3

Solving for variable 'x'.

Reorder the terms:
2x + 21x3 + -13x3 = -2x + 13x3 + 2x + -13x3

Combine like terms: 21x3 + -13x3 = 8x3
2x + 8x3 = -2x + 13x3 + 2x + -13x3

Reorder the terms:
2x + 8x3 = -2x + 2x + 13x3 + -13x3

Combine like terms: -2x + 2x = 0
2x + 8x3 = 0 + 13x3 + -13x3
2x + 8x3 = 13x3 + -13x3

Combine like terms: 13x3 + -13x3 = 0
2x + 8x3 = 0

Factor out the Greatest Common Factor (GCF), '2x'.
2x(1 + 4x2) = 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 '(1 + 4x2)' equal to zero and attempt to solve: Simplifying 1 + 4x2 = 0 Solving 1 + 4x2 = 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 + 4x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 4x2 = 0 + -1 4x2 = 0 + -1 Combine like terms: 0 + -1 = -1 4x2 = -1 Divide each side by '4'. x2 = -0.25 Simplifying x2 = -0.25 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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