a^3=9a

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Solution for a^3=9a equation:


Simplifying
a3 = 9a

Solving
a3 = 9a

Solving for variable 'a'.

Reorder the terms:
-9a + a3 = 9a + -9a

Combine like terms: 9a + -9a = 0
-9a + a3 = 0

Factor out the Greatest Common Factor (GCF), 'a'.
a(-9 + a2) = 0

Factor a difference between two squares.
a((3 + a)(-3 + a)) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(3 + a)' equal to zero and attempt to solve: Simplifying 3 + a = 0 Solving 3 + a = 0 Move all terms containing a to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + a = 0 + -3 Combine like terms: 3 + -3 = 0 0 + a = 0 + -3 a = 0 + -3 Combine like terms: 0 + -3 = -3 a = -3 Simplifying a = -3

Subproblem 3

Set the factor '(-3 + a)' equal to zero and attempt to solve: Simplifying -3 + a = 0 Solving -3 + a = 0 Move all terms containing a to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + a = 0 + 3 Combine like terms: -3 + 3 = 0 0 + a = 0 + 3 a = 0 + 3 Combine like terms: 0 + 3 = 3 a = 3 Simplifying a = 3

Solution

a = {0, -3, 3}

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