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Simplifying c2 = 2c + 16 Reorder the terms: c2 = 16 + 2c Solving c2 = 16 + 2c Solving for variable 'c'. Reorder the terms: -16 + -2c + c2 = 16 + 2c + -16 + -2c Reorder the terms: -16 + -2c + c2 = 16 + -16 + 2c + -2c Combine like terms: 16 + -16 = 0 -16 + -2c + c2 = 0 + 2c + -2c -16 + -2c + c2 = 2c + -2c Combine like terms: 2c + -2c = 0 -16 + -2c + c2 = 0 Begin completing the square. Move the constant term to the right: Add '16' to each side of the equation. -16 + -2c + 16 + c2 = 0 + 16 Reorder the terms: -16 + 16 + -2c + c2 = 0 + 16 Combine like terms: -16 + 16 = 0 0 + -2c + c2 = 0 + 16 -2c + c2 = 0 + 16 Combine like terms: 0 + 16 = 16 -2c + c2 = 16 The c term is -2c. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2c + 1 + c2 = 16 + 1 Reorder the terms: 1 + -2c + c2 = 16 + 1 Combine like terms: 16 + 1 = 17 1 + -2c + c2 = 17 Factor a perfect square on the left side: (c + -1)(c + -1) = 17 Calculate the square root of the right side: 4.123105626 Break this problem into two subproblems by setting (c + -1) equal to 4.123105626 and -4.123105626.Subproblem 1
c + -1 = 4.123105626 Simplifying c + -1 = 4.123105626 Reorder the terms: -1 + c = 4.123105626 Solving -1 + c = 4.123105626 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + c = 4.123105626 + 1 Combine like terms: -1 + 1 = 0 0 + c = 4.123105626 + 1 c = 4.123105626 + 1 Combine like terms: 4.123105626 + 1 = 5.123105626 c = 5.123105626 Simplifying c = 5.123105626Subproblem 2
c + -1 = -4.123105626 Simplifying c + -1 = -4.123105626 Reorder the terms: -1 + c = -4.123105626 Solving -1 + c = -4.123105626 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + c = -4.123105626 + 1 Combine like terms: -1 + 1 = 0 0 + c = -4.123105626 + 1 c = -4.123105626 + 1 Combine like terms: -4.123105626 + 1 = -3.123105626 c = -3.123105626 Simplifying c = -3.123105626Solution
The solution to the problem is based on the solutions from the subproblems. c = {5.123105626, -3.123105626}
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