3z^3+12z^2=135z

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Solution for 3z^3+12z^2=135z equation:


Simplifying
3z3 + 12z2 = 135z

Reorder the terms:
12z2 + 3z3 = 135z

Solving
12z2 + 3z3 = 135z

Solving for variable 'z'.

Reorder the terms:
-135z + 12z2 + 3z3 = 135z + -135z

Combine like terms: 135z + -135z = 0
-135z + 12z2 + 3z3 = 0

Factor out the Greatest Common Factor (GCF), '3z'.
3z(-45 + 4z + z2) = 0

Factor a trinomial.
3z((-9 + -1z)(5 + -1z)) = 0

Ignore the factor 3.

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 + -1z)' equal to zero and attempt to solve: Simplifying -9 + -1z = 0 Solving -9 + -1z = 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 + -1z = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1z = 0 + 9 -1z = 0 + 9 Combine like terms: 0 + 9 = 9 -1z = 9 Divide each side by '-1'. z = -9 Simplifying z = -9

Subproblem 3

Set the factor '(5 + -1z)' equal to zero and attempt to solve: Simplifying 5 + -1z = 0 Solving 5 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1z = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1z = 0 + -5 -1z = 0 + -5 Combine like terms: 0 + -5 = -5 -1z = -5 Divide each side by '-1'. z = 5 Simplifying z = 5

Solution

z = {0, -9, 5}

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