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Simplifying 2y(y + -3) + 1 = 0 Reorder the terms: 2y(-3 + y) + 1 = 0 (-3 * 2y + y * 2y) + 1 = 0 (-6y + 2y2) + 1 = 0 Reorder the terms: 1 + -6y + 2y2 = 0 Solving 1 + -6y + 2y2 = 0 Solving for variable 'y'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 0.5 + -3y + y2 = 0 Move the constant term to the right: Add '-0.5' to each side of the equation. 0.5 + -3y + -0.5 + y2 = 0 + -0.5 Reorder the terms: 0.5 + -0.5 + -3y + y2 = 0 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + -3y + y2 = 0 + -0.5 -3y + y2 = 0 + -0.5 Combine like terms: 0 + -0.5 = -0.5 -3y + y2 = -0.5 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 = -0.5 + 2.25 Reorder the terms: 2.25 + -3y + y2 = -0.5 + 2.25 Combine like terms: -0.5 + 2.25 = 1.75 2.25 + -3y + y2 = 1.75 Factor a perfect square on the left side: (y + -1.5)(y + -1.5) = 1.75 Calculate the square root of the right side: 1.322875656 Break this problem into two subproblems by setting (y + -1.5) equal to 1.322875656 and -1.322875656.Subproblem 1
y + -1.5 = 1.322875656 Simplifying y + -1.5 = 1.322875656 Reorder the terms: -1.5 + y = 1.322875656 Solving -1.5 + y = 1.322875656 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 = 1.322875656 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + y = 1.322875656 + 1.5 y = 1.322875656 + 1.5 Combine like terms: 1.322875656 + 1.5 = 2.822875656 y = 2.822875656 Simplifying y = 2.822875656Subproblem 2
y + -1.5 = -1.322875656 Simplifying y + -1.5 = -1.322875656 Reorder the terms: -1.5 + y = -1.322875656 Solving -1.5 + y = -1.322875656 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 = -1.322875656 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + y = -1.322875656 + 1.5 y = -1.322875656 + 1.5 Combine like terms: -1.322875656 + 1.5 = 0.177124344 y = 0.177124344 Simplifying y = 0.177124344Solution
The solution to the problem is based on the solutions from the subproblems. y = {2.822875656, 0.177124344}
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