0=4x^3-56x

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Solution for 0=4x^3-56x equation:


Simplifying
0 = 4x3 + -56x

Reorder the terms:
0 = -56x + 4x3

Solving
0 = -56x + 4x3

Solving for variable 'x'.
Remove the zero:
56x + -4x3 = -56x + 4x3 + 56x + -4x3

Reorder the terms:
56x + -4x3 = -56x + 56x + 4x3 + -4x3

Combine like terms: -56x + 56x = 0
56x + -4x3 = 0 + 4x3 + -4x3
56x + -4x3 = 4x3 + -4x3

Combine like terms: 4x3 + -4x3 = 0
56x + -4x3 = 0

Factor out the Greatest Common Factor (GCF), '4x'.
4x(14 + -1x2) = 0

Ignore the factor 4.

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 '(14 + -1x2)' equal to zero and attempt to solve: Simplifying 14 + -1x2 = 0 Solving 14 + -1x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + -1x2 = 0 + -14 Combine like terms: 14 + -14 = 0 0 + -1x2 = 0 + -14 -1x2 = 0 + -14 Combine like terms: 0 + -14 = -14 -1x2 = -14 Divide each side by '-1'. x2 = 14 Simplifying x2 = 14 Take the square root of each side: x = {-3.741657387, 3.741657387}

Solution

x = {0, -3.741657387, 3.741657387}

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