z^3=-9z

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Solution for z^3=-9z equation:


Simplifying
z3 = -9z

Solving
z3 = -9z

Solving for variable 'z'.

Reorder the terms:
9z + z3 = -9z + 9z

Combine like terms: -9z + 9z = 0
9z + z3 = 0

Factor out the Greatest Common Factor (GCF), 'z'.
z(9 + z2) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(9 + z2)' equal to zero and attempt to solve: Simplifying 9 + z2 = 0 Solving 9 + z2 = 0 Move all terms containing z to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + z2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + z2 = 0 + -9 z2 = 0 + -9 Combine like terms: 0 + -9 = -9 z2 = -9 Simplifying z2 = -9 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Solution

z = {0}

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