y^3-2y^2-3y=y^3+1

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Solution for y^3-2y^2-3y=y^3+1 equation:


Simplifying
y3 + -2y2 + -3y = y3 + 1

Reorder the terms:
-3y + -2y2 + y3 = y3 + 1

Reorder the terms:
-3y + -2y2 + y3 = 1 + y3

Add '-1y3' to each side of the equation.
-3y + -2y2 + y3 + -1y3 = 1 + y3 + -1y3

Combine like terms: y3 + -1y3 = 0
-3y + -2y2 + 0 = 1 + y3 + -1y3
-3y + -2y2 = 1 + y3 + -1y3

Combine like terms: y3 + -1y3 = 0
-3y + -2y2 = 1 + 0
-3y + -2y2 = 1

Solving
-3y + -2y2 = 1

Solving for variable 'y'.

Reorder the terms:
-1 + -3y + -2y2 = 1 + -1

Combine like terms: 1 + -1 = 0
-1 + -3y + -2y2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(1 + 3y + 2y2) = 0

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

Ignore the factor -1.

Subproblem 1

Set the factor '(1 + y)' equal to zero and attempt to solve: Simplifying 1 + y = 0 Solving 1 + y = 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 + y = 0 + -1 Combine like terms: 1 + -1 = 0 0 + y = 0 + -1 y = 0 + -1 Combine like terms: 0 + -1 = -1 y = -1 Simplifying y = -1

Subproblem 2

Set the factor '(1 + 2y)' equal to zero and attempt to solve: Simplifying 1 + 2y = 0 Solving 1 + 2y = 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 + 2y = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2y = 0 + -1 2y = 0 + -1 Combine like terms: 0 + -1 = -1 2y = -1 Divide each side by '2'. y = -0.5 Simplifying y = -0.5

Solution

y = {-1, -0.5}

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