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Simplifying y2 + -13y + 1 = 0 Reorder the terms: 1 + -13y + y2 = 0 Solving 1 + -13y + 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 + -13y + -1 + y2 = 0 + -1 Reorder the terms: 1 + -1 + -13y + y2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -13y + y2 = 0 + -1 -13y + y2 = 0 + -1 Combine like terms: 0 + -1 = -1 -13y + y2 = -1 The y term is -13y. Take half its coefficient (-6.5). Square it (42.25) and add it to both sides. Add '42.25' to each side of the equation. -13y + 42.25 + y2 = -1 + 42.25 Reorder the terms: 42.25 + -13y + y2 = -1 + 42.25 Combine like terms: -1 + 42.25 = 41.25 42.25 + -13y + y2 = 41.25 Factor a perfect square on the left side: (y + -6.5)(y + -6.5) = 41.25 Calculate the square root of the right side: 6.422616289 Break this problem into two subproblems by setting (y + -6.5) equal to 6.422616289 and -6.422616289.Subproblem 1
y + -6.5 = 6.422616289 Simplifying y + -6.5 = 6.422616289 Reorder the terms: -6.5 + y = 6.422616289 Solving -6.5 + y = 6.422616289 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + y = 6.422616289 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + y = 6.422616289 + 6.5 y = 6.422616289 + 6.5 Combine like terms: 6.422616289 + 6.5 = 12.922616289 y = 12.922616289 Simplifying y = 12.922616289Subproblem 2
y + -6.5 = -6.422616289 Simplifying y + -6.5 = -6.422616289 Reorder the terms: -6.5 + y = -6.422616289 Solving -6.5 + y = -6.422616289 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + y = -6.422616289 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + y = -6.422616289 + 6.5 y = -6.422616289 + 6.5 Combine like terms: -6.422616289 + 6.5 = 0.077383711 y = 0.077383711 Simplifying y = 0.077383711Solution
The solution to the problem is based on the solutions from the subproblems. y = {12.922616289, 0.077383711}
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