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Simplifying -4c(-1c + -8) = -4c + -8 Reorder the terms: -4c(-8 + -1c) = -4c + -8 (-8 * -4c + -1c * -4c) = -4c + -8 (32c + 4c2) = -4c + -8 Reorder the terms: 32c + 4c2 = -8 + -4c Solving 32c + 4c2 = -8 + -4c Solving for variable 'c'. Reorder the terms: 8 + 32c + 4c + 4c2 = -8 + -4c + 8 + 4c Combine like terms: 32c + 4c = 36c 8 + 36c + 4c2 = -8 + -4c + 8 + 4c Reorder the terms: 8 + 36c + 4c2 = -8 + 8 + -4c + 4c Combine like terms: -8 + 8 = 0 8 + 36c + 4c2 = 0 + -4c + 4c 8 + 36c + 4c2 = -4c + 4c Combine like terms: -4c + 4c = 0 8 + 36c + 4c2 = 0 Factor out the Greatest Common Factor (GCF), '4'. 4(2 + 9c + c2) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(2 + 9c + c2)' equal to zero and attempt to solve: Simplifying 2 + 9c + c2 = 0 Solving 2 + 9c + c2 = 0 Begin completing the square. Move the constant term to the right: Add '-2' to each side of the equation. 2 + 9c + -2 + c2 = 0 + -2 Reorder the terms: 2 + -2 + 9c + c2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 9c + c2 = 0 + -2 9c + c2 = 0 + -2 Combine like terms: 0 + -2 = -2 9c + c2 = -2 The c term is 9c. Take half its coefficient (4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. 9c + 20.25 + c2 = -2 + 20.25 Reorder the terms: 20.25 + 9c + c2 = -2 + 20.25 Combine like terms: -2 + 20.25 = 18.25 20.25 + 9c + c2 = 18.25 Factor a perfect square on the left side: (c + 4.5)(c + 4.5) = 18.25 Calculate the square root of the right side: 4.272001873 Break this problem into two subproblems by setting (c + 4.5) equal to 4.272001873 and -4.272001873.Subproblem 1
c + 4.5 = 4.272001873 Simplifying c + 4.5 = 4.272001873 Reorder the terms: 4.5 + c = 4.272001873 Solving 4.5 + c = 4.272001873 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + c = 4.272001873 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + c = 4.272001873 + -4.5 c = 4.272001873 + -4.5 Combine like terms: 4.272001873 + -4.5 = -0.227998127 c = -0.227998127 Simplifying c = -0.227998127Subproblem 2
c + 4.5 = -4.272001873 Simplifying c + 4.5 = -4.272001873 Reorder the terms: 4.5 + c = -4.272001873 Solving 4.5 + c = -4.272001873 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + c = -4.272001873 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + c = -4.272001873 + -4.5 c = -4.272001873 + -4.5 Combine like terms: -4.272001873 + -4.5 = -8.772001873 c = -8.772001873 Simplifying c = -8.772001873Solution
The solution to the problem is based on the solutions from the subproblems. c = {-0.227998127, -8.772001873}Solution
c = {-0.227998127, -8.772001873}
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