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Simplifying 2y + 2y(y + -2) = 6y + -4(y + -10) Reorder the terms: 2y + 2y(-2 + y) = 6y + -4(y + -10) 2y + (-2 * 2y + y * 2y) = 6y + -4(y + -10) 2y + (-4y + 2y2) = 6y + -4(y + -10) Combine like terms: 2y + -4y = -2y -2y + 2y2 = 6y + -4(y + -10) Reorder the terms: -2y + 2y2 = 6y + -4(-10 + y) -2y + 2y2 = 6y + (-10 * -4 + y * -4) -2y + 2y2 = 6y + (40 + -4y) Reorder the terms: -2y + 2y2 = 40 + 6y + -4y Combine like terms: 6y + -4y = 2y -2y + 2y2 = 40 + 2y Solving -2y + 2y2 = 40 + 2y Solving for variable 'y'. Reorder the terms: -40 + -2y + -2y + 2y2 = 40 + 2y + -40 + -2y Combine like terms: -2y + -2y = -4y -40 + -4y + 2y2 = 40 + 2y + -40 + -2y Reorder the terms: -40 + -4y + 2y2 = 40 + -40 + 2y + -2y Combine like terms: 40 + -40 = 0 -40 + -4y + 2y2 = 0 + 2y + -2y -40 + -4y + 2y2 = 2y + -2y Combine like terms: 2y + -2y = 0 -40 + -4y + 2y2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-20 + -2y + y2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-20 + -2y + y2)' equal to zero and attempt to solve: Simplifying -20 + -2y + y2 = 0 Solving -20 + -2y + y2 = 0 Begin completing the square. Move the constant term to the right: Add '20' to each side of the equation. -20 + -2y + 20 + y2 = 0 + 20 Reorder the terms: -20 + 20 + -2y + y2 = 0 + 20 Combine like terms: -20 + 20 = 0 0 + -2y + y2 = 0 + 20 -2y + y2 = 0 + 20 Combine like terms: 0 + 20 = 20 -2y + y2 = 20 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 = 20 + 1 Reorder the terms: 1 + -2y + y2 = 20 + 1 Combine like terms: 20 + 1 = 21 1 + -2y + y2 = 21 Factor a perfect square on the left side: (y + -1)(y + -1) = 21 Calculate the square root of the right side: 4.582575695 Break this problem into two subproblems by setting (y + -1) equal to 4.582575695 and -4.582575695.Subproblem 1
y + -1 = 4.582575695 Simplifying y + -1 = 4.582575695 Reorder the terms: -1 + y = 4.582575695 Solving -1 + y = 4.582575695 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 = 4.582575695 + 1 Combine like terms: -1 + 1 = 0 0 + y = 4.582575695 + 1 y = 4.582575695 + 1 Combine like terms: 4.582575695 + 1 = 5.582575695 y = 5.582575695 Simplifying y = 5.582575695Subproblem 2
y + -1 = -4.582575695 Simplifying y + -1 = -4.582575695 Reorder the terms: -1 + y = -4.582575695 Solving -1 + y = -4.582575695 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 = -4.582575695 + 1 Combine like terms: -1 + 1 = 0 0 + y = -4.582575695 + 1 y = -4.582575695 + 1 Combine like terms: -4.582575695 + 1 = -3.582575695 y = -3.582575695 Simplifying y = -3.582575695Solution
The solution to the problem is based on the solutions from the subproblems. y = {5.582575695, -3.582575695}Solution
y = {5.582575695, -3.582575695}
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