81w^3-4w=0

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Solution for 81w^3-4w=0 equation:


Simplifying
81w3 + -4w = 0

Reorder the terms:
-4w + 81w3 = 0

Solving
-4w + 81w3 = 0

Solving for variable 'w'.

Factor out the Greatest Common Factor (GCF), 'w'.
w(-4 + 81w2) = 0

Factor a difference between two squares.
w((2 + 9w)(-2 + 9w)) = 0

Subproblem 1

Set the factor 'w' equal to zero and attempt to solve: Simplifying w = 0 Solving w = 0 Move all terms containing w to the left, all other terms to the right. Simplifying w = 0

Subproblem 2

Set the factor '(2 + 9w)' equal to zero and attempt to solve: Simplifying 2 + 9w = 0 Solving 2 + 9w = 0 Move all terms containing w to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 9w = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 9w = 0 + -2 9w = 0 + -2 Combine like terms: 0 + -2 = -2 9w = -2 Divide each side by '9'. w = -0.2222222222 Simplifying w = -0.2222222222

Subproblem 3

Set the factor '(-2 + 9w)' equal to zero and attempt to solve: Simplifying -2 + 9w = 0 Solving -2 + 9w = 0 Move all terms containing w to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + 9w = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 9w = 0 + 2 9w = 0 + 2 Combine like terms: 0 + 2 = 2 9w = 2 Divide each side by '9'. w = 0.2222222222 Simplifying w = 0.2222222222

Solution

w = {0, -0.2222222222, 0.2222222222}

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