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Simplifying 0 = y3 + -4y Reorder the terms: 0 = -4y + y3 Solving 0 = -4y + y3 Solving for variable 'y'. Remove the zero: 4y + -1y3 = -4y + y3 + 4y + -1y3 Reorder the terms: 4y + -1y3 = -4y + 4y + y3 + -1y3 Combine like terms: -4y + 4y = 0 4y + -1y3 = 0 + y3 + -1y3 4y + -1y3 = y3 + -1y3 Combine like terms: y3 + -1y3 = 0 4y + -1y3 = 0 Factor out the Greatest Common Factor (GCF), 'y'. y(4 + -1y2) = 0 Factor a difference between two squares. y((2 + y)(2 + -1y)) = 0Subproblem 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 = 0Subproblem 2
Set the factor '(2 + y)' equal to zero and attempt to solve: Simplifying 2 + y = 0 Solving 2 + y = 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 + y = 0 + -2 Combine like terms: 2 + -2 = 0 0 + y = 0 + -2 y = 0 + -2 Combine like terms: 0 + -2 = -2 y = -2 Simplifying y = -2Subproblem 3
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 = 2Solution
y = {0, -2, 2}
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