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Simplifying -1y2 + -2y + 6 = 0 Reorder the terms: 6 + -2y + -1y2 = 0 Solving 6 + -2y + -1y2 = 0 Solving for variable 'y'. Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -6 + 2y + y2 = 0 Move the constant term to the right: Add '6' to each side of the equation. -6 + 2y + 6 + y2 = 0 + 6 Reorder the terms: -6 + 6 + 2y + y2 = 0 + 6 Combine like terms: -6 + 6 = 0 0 + 2y + y2 = 0 + 6 2y + y2 = 0 + 6 Combine like terms: 0 + 6 = 6 2y + y2 = 6 The y term is 2y. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2y + 1 + y2 = 6 + 1 Reorder the terms: 1 + 2y + y2 = 6 + 1 Combine like terms: 6 + 1 = 7 1 + 2y + y2 = 7 Factor a perfect square on the left side: (y + 1)(y + 1) = 7 Calculate the square root of the right side: 2.645751311 Break this problem into two subproblems by setting (y + 1) equal to 2.645751311 and -2.645751311.Subproblem 1
y + 1 = 2.645751311 Simplifying y + 1 = 2.645751311 Reorder the terms: 1 + y = 2.645751311 Solving 1 + y = 2.645751311 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + y = 2.645751311 + -1 Combine like terms: 1 + -1 = 0 0 + y = 2.645751311 + -1 y = 2.645751311 + -1 Combine like terms: 2.645751311 + -1 = 1.645751311 y = 1.645751311 Simplifying y = 1.645751311Subproblem 2
y + 1 = -2.645751311 Simplifying y + 1 = -2.645751311 Reorder the terms: 1 + y = -2.645751311 Solving 1 + y = -2.645751311 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + y = -2.645751311 + -1 Combine like terms: 1 + -1 = 0 0 + y = -2.645751311 + -1 y = -2.645751311 + -1 Combine like terms: -2.645751311 + -1 = -3.645751311 y = -3.645751311 Simplifying y = -3.645751311Solution
The solution to the problem is based on the solutions from the subproblems. y = {1.645751311, -3.645751311}
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