9y^3-3y^2=12y

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Solution for 9y^3-3y^2=12y equation:


Simplifying
9y3 + -3y2 = 12y

Reorder the terms:
-3y2 + 9y3 = 12y

Solving
-3y2 + 9y3 = 12y

Solving for variable 'y'.

Reorder the terms:
-12y + -3y2 + 9y3 = 12y + -12y

Combine like terms: 12y + -12y = 0
-12y + -3y2 + 9y3 = 0

Factor out the Greatest Common Factor (GCF), '3y'.
3y(-4 + -1y + 3y2) = 0

Factor a trinomial.
3y((-1 + -1y)(4 + -3y)) = 0

Ignore the factor 3.

Subproblem 1

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

Subproblem 2

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

Subproblem 3

Set the factor '(4 + -3y)' equal to zero and attempt to solve: Simplifying 4 + -3y = 0 Solving 4 + -3y = 0 Move all terms containing y to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -3y = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3y = 0 + -4 -3y = 0 + -4 Combine like terms: 0 + -4 = -4 -3y = -4 Divide each side by '-3'. y = 1.333333333 Simplifying y = 1.333333333

Solution

y = {0, -1, 1.333333333}

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