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Simplifying (6y * y + -2y + 3) = (-5y * y + 7y + 4) Multiply y * y (6y2 + -2y + 3) = (-5y * y + 7y + 4) Reorder the terms: (3 + -2y + 6y2) = (-5y * y + 7y + 4) Remove parenthesis around (3 + -2y + 6y2) 3 + -2y + 6y2 = (-5y * y + 7y + 4) Multiply y * y 3 + -2y + 6y2 = (-5y2 + 7y + 4) Reorder the terms: 3 + -2y + 6y2 = (4 + 7y + -5y2) Remove parenthesis around (4 + 7y + -5y2) 3 + -2y + 6y2 = 4 + 7y + -5y2 Solving 3 + -2y + 6y2 = 4 + 7y + -5y2 Solving for variable 'y'. Reorder the terms: 3 + -4 + -2y + -7y + 6y2 + 5y2 = 4 + 7y + -5y2 + -4 + -7y + 5y2 Combine like terms: 3 + -4 = -1 -1 + -2y + -7y + 6y2 + 5y2 = 4 + 7y + -5y2 + -4 + -7y + 5y2 Combine like terms: -2y + -7y = -9y -1 + -9y + 6y2 + 5y2 = 4 + 7y + -5y2 + -4 + -7y + 5y2 Combine like terms: 6y2 + 5y2 = 11y2 -1 + -9y + 11y2 = 4 + 7y + -5y2 + -4 + -7y + 5y2 Reorder the terms: -1 + -9y + 11y2 = 4 + -4 + 7y + -7y + -5y2 + 5y2 Combine like terms: 4 + -4 = 0 -1 + -9y + 11y2 = 0 + 7y + -7y + -5y2 + 5y2 -1 + -9y + 11y2 = 7y + -7y + -5y2 + 5y2 Combine like terms: 7y + -7y = 0 -1 + -9y + 11y2 = 0 + -5y2 + 5y2 -1 + -9y + 11y2 = -5y2 + 5y2 Combine like terms: -5y2 + 5y2 = 0 -1 + -9y + 11y2 = 0 Begin completing the square. Divide all terms by 11 the coefficient of the squared term: Divide each side by '11'. -0.09090909091 + -0.8181818182y + y2 = 0 Move the constant term to the right: Add '0.09090909091' to each side of the equation. -0.09090909091 + -0.8181818182y + 0.09090909091 + y2 = 0 + 0.09090909091 Reorder the terms: -0.09090909091 + 0.09090909091 + -0.8181818182y + y2 = 0 + 0.09090909091 Combine like terms: -0.09090909091 + 0.09090909091 = 0.00000000000 0.00000000000 + -0.8181818182y + y2 = 0 + 0.09090909091 -0.8181818182y + y2 = 0 + 0.09090909091 Combine like terms: 0 + 0.09090909091 = 0.09090909091 -0.8181818182y + y2 = 0.09090909091 The y term is -0.8181818182y. Take half its coefficient (-0.4090909091). Square it (0.1673553719) and add it to both sides. Add '0.1673553719' to each side of the equation. -0.8181818182y + 0.1673553719 + y2 = 0.09090909091 + 0.1673553719 Reorder the terms: 0.1673553719 + -0.8181818182y + y2 = 0.09090909091 + 0.1673553719 Combine like terms: 0.09090909091 + 0.1673553719 = 0.25826446281 0.1673553719 + -0.8181818182y + y2 = 0.25826446281 Factor a perfect square on the left side: (y + -0.4090909091)(y + -0.4090909091) = 0.25826446281 Calculate the square root of the right side: 0.508197268 Break this problem into two subproblems by setting (y + -0.4090909091) equal to 0.508197268 and -0.508197268.Subproblem 1
y + -0.4090909091 = 0.508197268 Simplifying y + -0.4090909091 = 0.508197268 Reorder the terms: -0.4090909091 + y = 0.508197268 Solving -0.4090909091 + y = 0.508197268 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.4090909091' to each side of the equation. -0.4090909091 + 0.4090909091 + y = 0.508197268 + 0.4090909091 Combine like terms: -0.4090909091 + 0.4090909091 = 0.0000000000 0.0000000000 + y = 0.508197268 + 0.4090909091 y = 0.508197268 + 0.4090909091 Combine like terms: 0.508197268 + 0.4090909091 = 0.9172881771 y = 0.9172881771 Simplifying y = 0.9172881771Subproblem 2
y + -0.4090909091 = -0.508197268 Simplifying y + -0.4090909091 = -0.508197268 Reorder the terms: -0.4090909091 + y = -0.508197268 Solving -0.4090909091 + y = -0.508197268 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.4090909091' to each side of the equation. -0.4090909091 + 0.4090909091 + y = -0.508197268 + 0.4090909091 Combine like terms: -0.4090909091 + 0.4090909091 = 0.0000000000 0.0000000000 + y = -0.508197268 + 0.4090909091 y = -0.508197268 + 0.4090909091 Combine like terms: -0.508197268 + 0.4090909091 = -0.0991063589 y = -0.0991063589 Simplifying y = -0.0991063589Solution
The solution to the problem is based on the solutions from the subproblems. y = {0.9172881771, -0.0991063589}
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