9z^3-4z=

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Solution for 9z^3-4z= equation:


Simplifying
9z3 + -4z = 0

Reorder the terms:
-4z + 9z3 = 0

Solving
-4z + 9z3 = 0

Solving for variable 'z'.

Factor out the Greatest Common Factor (GCF), 'z'.
z(-4 + 9z2) = 0

Factor a difference between two squares.
z((2 + 3z)(-2 + 3z)) = 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 '(2 + 3z)' equal to zero and attempt to solve: Simplifying 2 + 3z = 0 Solving 2 + 3z = 0 Move all terms containing z to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 3z = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 3z = 0 + -2 3z = 0 + -2 Combine like terms: 0 + -2 = -2 3z = -2 Divide each side by '3'. z = -0.6666666667 Simplifying z = -0.6666666667

Subproblem 3

Set the factor '(-2 + 3z)' equal to zero and attempt to solve: Simplifying -2 + 3z = 0 Solving -2 + 3z = 0 Move all terms containing z to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + 3z = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 3z = 0 + 2 3z = 0 + 2 Combine like terms: 0 + 2 = 2 3z = 2 Divide each side by '3'. z = 0.6666666667 Simplifying z = 0.6666666667

Solution

z = {0, -0.6666666667, 0.6666666667}

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