0=3x-x^3

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Solution for 0=3x-x^3 equation:


Simplifying
0 = 3x + -1x3

Solving
0 = 3x + -1x3

Solving for variable 'x'.
Remove the zero:
-3x + x3 = 3x + -1x3 + -3x + x3

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

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

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

Factor out the Greatest Common Factor (GCF), 'x'.
x(-3 + x2) = 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 '(-3 + x2)' equal to zero and attempt to solve: Simplifying -3 + x2 = 0 Solving -3 + x2 = 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 + x2 = 0 + 3 Combine like terms: -3 + 3 = 0 0 + x2 = 0 + 3 x2 = 0 + 3 Combine like terms: 0 + 3 = 3 x2 = 3 Simplifying x2 = 3 Take the square root of each side: x = {-1.732050808, 1.732050808}

Solution

x = {0, -1.732050808, 1.732050808}

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