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Simplifying 2y(y + 6) = 10 Reorder the terms: 2y(6 + y) = 10 (6 * 2y + y * 2y) = 10 (12y + 2y2) = 10 Solving 12y + 2y2 = 10 Solving for variable 'y'. Reorder the terms: -10 + 12y + 2y2 = 10 + -10 Combine like terms: 10 + -10 = 0 -10 + 12y + 2y2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-5 + 6y + y2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-5 + 6y + y2)' equal to zero and attempt to solve: Simplifying -5 + 6y + y2 = 0 Solving -5 + 6y + y2 = 0 Begin completing the square. Move the constant term to the right: Add '5' to each side of the equation. -5 + 6y + 5 + y2 = 0 + 5 Reorder the terms: -5 + 5 + 6y + y2 = 0 + 5 Combine like terms: -5 + 5 = 0 0 + 6y + y2 = 0 + 5 6y + y2 = 0 + 5 Combine like terms: 0 + 5 = 5 6y + y2 = 5 The y term is 6y. Take half its coefficient (3). Square it (9) and add it to both sides. Add '9' to each side of the equation. 6y + 9 + y2 = 5 + 9 Reorder the terms: 9 + 6y + y2 = 5 + 9 Combine like terms: 5 + 9 = 14 9 + 6y + y2 = 14 Factor a perfect square on the left side: (y + 3)(y + 3) = 14 Calculate the square root of the right side: 3.741657387 Break this problem into two subproblems by setting (y + 3) equal to 3.741657387 and -3.741657387.Subproblem 1
y + 3 = 3.741657387 Simplifying y + 3 = 3.741657387 Reorder the terms: 3 + y = 3.741657387 Solving 3 + y = 3.741657387 Solving for variable 'y'. 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 = 3.741657387 + -3 Combine like terms: 3 + -3 = 0 0 + y = 3.741657387 + -3 y = 3.741657387 + -3 Combine like terms: 3.741657387 + -3 = 0.741657387 y = 0.741657387 Simplifying y = 0.741657387Subproblem 2
y + 3 = -3.741657387 Simplifying y + 3 = -3.741657387 Reorder the terms: 3 + y = -3.741657387 Solving 3 + y = -3.741657387 Solving for variable 'y'. 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 = -3.741657387 + -3 Combine like terms: 3 + -3 = 0 0 + y = -3.741657387 + -3 y = -3.741657387 + -3 Combine like terms: -3.741657387 + -3 = -6.741657387 y = -6.741657387 Simplifying y = -6.741657387Solution
The solution to the problem is based on the solutions from the subproblems. y = {0.741657387, -6.741657387}Solution
y = {0.741657387, -6.741657387}
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