2y^3-4y^2=3y^2+15y

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Solution for 2y^3-4y^2=3y^2+15y equation:


Simplifying
2y3 + -4y2 = 3y2 + 15y

Reorder the terms:
-4y2 + 2y3 = 3y2 + 15y

Reorder the terms:
-4y2 + 2y3 = 15y + 3y2

Solving
-4y2 + 2y3 = 15y + 3y2

Solving for variable 'y'.

Reorder the terms:
-15y + -4y2 + -3y2 + 2y3 = 15y + 3y2 + -15y + -3y2

Combine like terms: -4y2 + -3y2 = -7y2
-15y + -7y2 + 2y3 = 15y + 3y2 + -15y + -3y2

Reorder the terms:
-15y + -7y2 + 2y3 = 15y + -15y + 3y2 + -3y2

Combine like terms: 15y + -15y = 0
-15y + -7y2 + 2y3 = 0 + 3y2 + -3y2
-15y + -7y2 + 2y3 = 3y2 + -3y2

Combine like terms: 3y2 + -3y2 = 0
-15y + -7y2 + 2y3 = 0

Factor out the Greatest Common Factor (GCF), 'y'.
y(-15 + -7y + 2y2) = 0

Factor a trinomial.
y((-3 + -2y)(5 + -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 '(-3 + -2y)' equal to zero and attempt to solve: Simplifying -3 + -2y = 0 Solving -3 + -2y = 0 Move all terms containing y to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -2y = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -2y = 0 + 3 -2y = 0 + 3 Combine like terms: 0 + 3 = 3 -2y = 3 Divide each side by '-2'. y = -1.5 Simplifying y = -1.5

Subproblem 3

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

Solution

y = {0, -1.5, 5}

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