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Simplifying 81y3 + -16y = 0 Reorder the terms: -16y + 81y3 = 0 Solving -16y + 81y3 = 0 Solving for variable 'y'. Factor out the Greatest Common Factor (GCF), 'y'. y(-16 + 81y2) = 0 Factor a difference between two squares. y((4 + 9y)(-4 + 9y)) = 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 '(4 + 9y)' equal to zero and attempt to solve: Simplifying 4 + 9y = 0 Solving 4 + 9y = 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 + 9y = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 9y = 0 + -4 9y = 0 + -4 Combine like terms: 0 + -4 = -4 9y = -4 Divide each side by '9'. y = -0.4444444444 Simplifying y = -0.4444444444Subproblem 3
Set the factor '(-4 + 9y)' equal to zero and attempt to solve: Simplifying -4 + 9y = 0 Solving -4 + 9y = 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 + 9y = 0 + 4 Combine like terms: -4 + 4 = 0 0 + 9y = 0 + 4 9y = 0 + 4 Combine like terms: 0 + 4 = 4 9y = 4 Divide each side by '9'. y = 0.4444444444 Simplifying y = 0.4444444444Solution
y = {0, -0.4444444444, 0.4444444444}
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