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Simplifying y2 + -3y + 1 = 0 Reorder the terms: 1 + -3y + y2 = 0 Solving 1 + -3y + y2 = 0 Solving for variable 'y'. Begin completing the square. Move the constant term to the right: Add '-1' to each side of the equation. 1 + -3y + -1 + y2 = 0 + -1 Reorder the terms: 1 + -1 + -3y + y2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3y + y2 = 0 + -1 -3y + y2 = 0 + -1 Combine like terms: 0 + -1 = -1 -3y + y2 = -1 The y term is -3y. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3y + 2.25 + y2 = -1 + 2.25 Reorder the terms: 2.25 + -3y + y2 = -1 + 2.25 Combine like terms: -1 + 2.25 = 1.25 2.25 + -3y + y2 = 1.25 Factor a perfect square on the left side: (y + -1.5)(y + -1.5) = 1.25 Calculate the square root of the right side: 1.118033989 Break this problem into two subproblems by setting (y + -1.5) equal to 1.118033989 and -1.118033989.Subproblem 1
y + -1.5 = 1.118033989 Simplifying y + -1.5 = 1.118033989 Reorder the terms: -1.5 + y = 1.118033989 Solving -1.5 + y = 1.118033989 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + y = 1.118033989 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + y = 1.118033989 + 1.5 y = 1.118033989 + 1.5 Combine like terms: 1.118033989 + 1.5 = 2.618033989 y = 2.618033989 Simplifying y = 2.618033989Subproblem 2
y + -1.5 = -1.118033989 Simplifying y + -1.5 = -1.118033989 Reorder the terms: -1.5 + y = -1.118033989 Solving -1.5 + y = -1.118033989 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + y = -1.118033989 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + y = -1.118033989 + 1.5 y = -1.118033989 + 1.5 Combine like terms: -1.118033989 + 1.5 = 0.381966011 y = 0.381966011 Simplifying y = 0.381966011Solution
The solution to the problem is based on the solutions from the subproblems. y = {2.618033989, 0.381966011}
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