1-3x-x^3=2x+1

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Solution for 1-3x-x^3=2x+1 equation:


Simplifying
1 + -3x + -1x3 = 2x + 1

Reorder the terms:
1 + -3x + -1x3 = 1 + 2x

Add '-1' to each side of the equation.
1 + -3x + -1 + -1x3 = 1 + -1 + 2x

Reorder the terms:
1 + -1 + -3x + -1x3 = 1 + -1 + 2x

Combine like terms: 1 + -1 = 0
0 + -3x + -1x3 = 1 + -1 + 2x
-3x + -1x3 = 1 + -1 + 2x

Combine like terms: 1 + -1 = 0
-3x + -1x3 = 0 + 2x
-3x + -1x3 = 2x

Solving
-3x + -1x3 = 2x

Solving for variable 'x'.

Reorder the terms:
-3x + -2x + -1x3 = 2x + -2x

Combine like terms: -3x + -2x = -5x
-5x + -1x3 = 2x + -2x

Combine like terms: 2x + -2x = 0
-5x + -1x3 = 0

Factor out the Greatest Common Factor (GCF), '-1x'.
-1x(5 + x2) = 0

Ignore the factor -1.

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 '(5 + x2)' equal to zero and attempt to solve: Simplifying 5 + x2 = 0 Solving 5 + x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x2 = 0 + -5 x2 = 0 + -5 Combine like terms: 0 + -5 = -5 x2 = -5 Simplifying x2 = -5 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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