3y^3+2y^2=8y

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Solution for 3y^3+2y^2=8y equation:


Simplifying
3y3 + 2y2 = 8y

Reorder the terms:
2y2 + 3y3 = 8y

Solving
2y2 + 3y3 = 8y

Solving for variable 'y'.

Reorder the terms:
-8y + 2y2 + 3y3 = 8y + -8y

Combine like terms: 8y + -8y = 0
-8y + 2y2 + 3y3 = 0

Factor out the Greatest Common Factor (GCF), 'y'.
y(-8 + 2y + 3y2) = 0

Factor a trinomial.
y((-2 + -1y)(4 + -3y)) = 0

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 '(-2 + -1y)' equal to zero and attempt to solve: Simplifying -2 + -1y = 0 Solving -2 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1y = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1y = 0 + 2 -1y = 0 + 2 Combine like terms: 0 + 2 = 2 -1y = 2 Divide each side by '-1'. y = -2 Simplifying y = -2

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, -2, 1.333333333}

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