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Simplifying y(4y + -6) = 13(-1y + 1) Reorder the terms: y(-6 + 4y) = 13(-1y + 1) (-6 * y + 4y * y) = 13(-1y + 1) (-6y + 4y2) = 13(-1y + 1) Reorder the terms: -6y + 4y2 = 13(1 + -1y) -6y + 4y2 = (1 * 13 + -1y * 13) -6y + 4y2 = (13 + -13y) Solving -6y + 4y2 = 13 + -13y Solving for variable 'y'. Reorder the terms: -13 + -6y + 13y + 4y2 = 13 + -13y + -13 + 13y Combine like terms: -6y + 13y = 7y -13 + 7y + 4y2 = 13 + -13y + -13 + 13y Reorder the terms: -13 + 7y + 4y2 = 13 + -13 + -13y + 13y Combine like terms: 13 + -13 = 0 -13 + 7y + 4y2 = 0 + -13y + 13y -13 + 7y + 4y2 = -13y + 13y Combine like terms: -13y + 13y = 0 -13 + 7y + 4y2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -3.25 + 1.75y + y2 = 0 Move the constant term to the right: Add '3.25' to each side of the equation. -3.25 + 1.75y + 3.25 + y2 = 0 + 3.25 Reorder the terms: -3.25 + 3.25 + 1.75y + y2 = 0 + 3.25 Combine like terms: -3.25 + 3.25 = 0.00 0.00 + 1.75y + y2 = 0 + 3.25 1.75y + y2 = 0 + 3.25 Combine like terms: 0 + 3.25 = 3.25 1.75y + y2 = 3.25 The y term is 1.75y. Take half its coefficient (0.875). Square it (0.765625) and add it to both sides. Add '0.765625' to each side of the equation. 1.75y + 0.765625 + y2 = 3.25 + 0.765625 Reorder the terms: 0.765625 + 1.75y + y2 = 3.25 + 0.765625 Combine like terms: 3.25 + 0.765625 = 4.015625 0.765625 + 1.75y + y2 = 4.015625 Factor a perfect square on the left side: (y + 0.875)(y + 0.875) = 4.015625 Calculate the square root of the right side: 2.003902443 Break this problem into two subproblems by setting (y + 0.875) equal to 2.003902443 and -2.003902443.Subproblem 1
y + 0.875 = 2.003902443 Simplifying y + 0.875 = 2.003902443 Reorder the terms: 0.875 + y = 2.003902443 Solving 0.875 + y = 2.003902443 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-0.875' to each side of the equation. 0.875 + -0.875 + y = 2.003902443 + -0.875 Combine like terms: 0.875 + -0.875 = 0.000 0.000 + y = 2.003902443 + -0.875 y = 2.003902443 + -0.875 Combine like terms: 2.003902443 + -0.875 = 1.128902443 y = 1.128902443 Simplifying y = 1.128902443Subproblem 2
y + 0.875 = -2.003902443 Simplifying y + 0.875 = -2.003902443 Reorder the terms: 0.875 + y = -2.003902443 Solving 0.875 + y = -2.003902443 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-0.875' to each side of the equation. 0.875 + -0.875 + y = -2.003902443 + -0.875 Combine like terms: 0.875 + -0.875 = 0.000 0.000 + y = -2.003902443 + -0.875 y = -2.003902443 + -0.875 Combine like terms: -2.003902443 + -0.875 = -2.878902443 y = -2.878902443 Simplifying y = -2.878902443Solution
The solution to the problem is based on the solutions from the subproblems. y = {1.128902443, -2.878902443}
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