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Simplifying 6y(2y + -1) + -2(2y) = 14 Reorder the terms: 6y(-1 + 2y) + -2(2y) = 14 (-1 * 6y + 2y * 6y) + -2(2y) = 14 (-6y + 12y2) + -2(2y) = 14 Remove parenthesis around (2y) -6y + 12y2 + -2 * 2y = 14 Multiply -2 * 2 -6y + 12y2 + -4y = 14 Reorder the terms: -6y + -4y + 12y2 = 14 Combine like terms: -6y + -4y = -10y -10y + 12y2 = 14 Solving -10y + 12y2 = 14 Solving for variable 'y'. Reorder the terms: -14 + -10y + 12y2 = 14 + -14 Combine like terms: 14 + -14 = 0 -14 + -10y + 12y2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-7 + -5y + 6y2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-7 + -5y + 6y2)' equal to zero and attempt to solve: Simplifying -7 + -5y + 6y2 = 0 Solving -7 + -5y + 6y2 = 0 Begin completing the square. Divide all terms by 6 the coefficient of the squared term: Divide each side by '6'. -1.166666667 + -0.8333333333y + y2 = 0 Move the constant term to the right: Add '1.166666667' to each side of the equation. -1.166666667 + -0.8333333333y + 1.166666667 + y2 = 0 + 1.166666667 Reorder the terms: -1.166666667 + 1.166666667 + -0.8333333333y + y2 = 0 + 1.166666667 Combine like terms: -1.166666667 + 1.166666667 = 0.000000000 0.000000000 + -0.8333333333y + y2 = 0 + 1.166666667 -0.8333333333y + y2 = 0 + 1.166666667 Combine like terms: 0 + 1.166666667 = 1.166666667 -0.8333333333y + y2 = 1.166666667 The y term is -0.8333333333y. Take half its coefficient (-0.4166666667). Square it (0.1736111111) and add it to both sides. Add '0.1736111111' to each side of the equation. -0.8333333333y + 0.1736111111 + y2 = 1.166666667 + 0.1736111111 Reorder the terms: 0.1736111111 + -0.8333333333y + y2 = 1.166666667 + 0.1736111111 Combine like terms: 1.166666667 + 0.1736111111 = 1.3402777781 0.1736111111 + -0.8333333333y + y2 = 1.3402777781 Factor a perfect square on the left side: (y + -0.4166666667)(y + -0.4166666667) = 1.3402777781 Calculate the square root of the right side: 1.157703666 Break this problem into two subproblems by setting (y + -0.4166666667) equal to 1.157703666 and -1.157703666.Subproblem 1
y + -0.4166666667 = 1.157703666 Simplifying y + -0.4166666667 = 1.157703666 Reorder the terms: -0.4166666667 + y = 1.157703666 Solving -0.4166666667 + y = 1.157703666 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.4166666667' to each side of the equation. -0.4166666667 + 0.4166666667 + y = 1.157703666 + 0.4166666667 Combine like terms: -0.4166666667 + 0.4166666667 = 0.0000000000 0.0000000000 + y = 1.157703666 + 0.4166666667 y = 1.157703666 + 0.4166666667 Combine like terms: 1.157703666 + 0.4166666667 = 1.5743703327 y = 1.5743703327 Simplifying y = 1.5743703327Subproblem 2
y + -0.4166666667 = -1.157703666 Simplifying y + -0.4166666667 = -1.157703666 Reorder the terms: -0.4166666667 + y = -1.157703666 Solving -0.4166666667 + y = -1.157703666 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.4166666667' to each side of the equation. -0.4166666667 + 0.4166666667 + y = -1.157703666 + 0.4166666667 Combine like terms: -0.4166666667 + 0.4166666667 = 0.0000000000 0.0000000000 + y = -1.157703666 + 0.4166666667 y = -1.157703666 + 0.4166666667 Combine like terms: -1.157703666 + 0.4166666667 = -0.7410369993 y = -0.7410369993 Simplifying y = -0.7410369993Solution
The solution to the problem is based on the solutions from the subproblems. y = {1.5743703327, -0.7410369993}Solution
y = {1.5743703327, -0.7410369993}
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