y^3+8y^2=9y

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Solution for y^3+8y^2=9y equation:


Simplifying
y3 + 8y2 = 9y

Reorder the terms:
8y2 + y3 = 9y

Solving
8y2 + y3 = 9y

Solving for variable 'y'.

Reorder the terms:
-9y + 8y2 + y3 = 9y + -9y

Combine like terms: 9y + -9y = 0
-9y + 8y2 + y3 = 0

Factor out the Greatest Common Factor (GCF), 'y'.
y(-9 + 8y + y2) = 0

Factor a trinomial.
y((-9 + -1y)(1 + -1y)) = 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 '(-9 + -1y)' equal to zero and attempt to solve: Simplifying -9 + -1y = 0 Solving -9 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -1y = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1y = 0 + 9 -1y = 0 + 9 Combine like terms: 0 + 9 = 9 -1y = 9 Divide each side by '-1'. y = -9 Simplifying y = -9

Subproblem 3

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

Solution

y = {0, -9, 1}

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