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Simplifying (y + 3)(y + 3) + -1(y + 3)(4y) = 0 Reorder the terms: (3 + y)(y + 3) + -1(y + 3)(4y) = 0 Reorder the terms: (3 + y)(3 + y) + -1(y + 3)(4y) = 0 Multiply (3 + y) * (3 + y) (3(3 + y) + y(3 + y)) + -1(y + 3)(4y) = 0 ((3 * 3 + y * 3) + y(3 + y)) + -1(y + 3)(4y) = 0 ((9 + 3y) + y(3 + y)) + -1(y + 3)(4y) = 0 (9 + 3y + (3 * y + y * y)) + -1(y + 3)(4y) = 0 (9 + 3y + (3y + y2)) + -1(y + 3)(4y) = 0 Combine like terms: 3y + 3y = 6y (9 + 6y + y2) + -1(y + 3)(4y) = 0 Reorder the terms: 9 + 6y + y2 + -1(3 + y)(4y) = 0 Remove parenthesis around (4y) 9 + 6y + y2 + -1(3 + y) * 4y = 0 Reorder the terms for easier multiplication: 9 + 6y + y2 + -1 * 4y(3 + y) = 0 Multiply -1 * 4 9 + 6y + y2 + -4y(3 + y) = 0 9 + 6y + y2 + (3 * -4y + y * -4y) = 0 9 + 6y + y2 + (-12y + -4y2) = 0 Reorder the terms: 9 + 6y + -12y + y2 + -4y2 = 0 Combine like terms: 6y + -12y = -6y 9 + -6y + y2 + -4y2 = 0 Combine like terms: y2 + -4y2 = -3y2 9 + -6y + -3y2 = 0 Solving 9 + -6y + -3y2 = 0 Solving for variable 'y'. Factor out the Greatest Common Factor (GCF), '3'. 3(3 + -2y + -1y2) = 0 Factor a trinomial. 3((1 + -1y)(3 + y)) = 0 Ignore the factor 3.Subproblem 1
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 = 1Subproblem 2
Set the factor '(3 + y)' equal to zero and attempt to solve: Simplifying 3 + y = 0 Solving 3 + y = 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 + y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + y = 0 + -3 y = 0 + -3 Combine like terms: 0 + -3 = -3 y = -3 Simplifying y = -3Solution
y = {1, -3}
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