b^3=4b

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Solution for b^3=4b equation:


Simplifying
b3 = 4b

Solving
b3 = 4b

Solving for variable 'b'.

Reorder the terms:
-4b + b3 = 4b + -4b

Combine like terms: 4b + -4b = 0
-4b + b3 = 0

Factor out the Greatest Common Factor (GCF), 'b'.
b(-4 + b2) = 0

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

Subproblem 1

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

Subproblem 2

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

Subproblem 3

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

Solution

b = {0, -2, 2}

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