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Simplifying c2 + 6c + 8c = -3 Reorder the terms: 6c + 8c + c2 = -3 Combine like terms: 6c + 8c = 14c 14c + c2 = -3 Solving 14c + c2 = -3 Solving for variable 'c'. Reorder the terms: 3 + 14c + c2 = -3 + 3 Combine like terms: -3 + 3 = 0 3 + 14c + c2 = 0 Begin completing the square. Move the constant term to the right: Add '-3' to each side of the equation. 3 + 14c + -3 + c2 = 0 + -3 Reorder the terms: 3 + -3 + 14c + c2 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 14c + c2 = 0 + -3 14c + c2 = 0 + -3 Combine like terms: 0 + -3 = -3 14c + c2 = -3 The c term is 14c. Take half its coefficient (7). Square it (49) and add it to both sides. Add '49' to each side of the equation. 14c + 49 + c2 = -3 + 49 Reorder the terms: 49 + 14c + c2 = -3 + 49 Combine like terms: -3 + 49 = 46 49 + 14c + c2 = 46 Factor a perfect square on the left side: (c + 7)(c + 7) = 46 Calculate the square root of the right side: 6.782329983 Break this problem into two subproblems by setting (c + 7) equal to 6.782329983 and -6.782329983.Subproblem 1
c + 7 = 6.782329983 Simplifying c + 7 = 6.782329983 Reorder the terms: 7 + c = 6.782329983 Solving 7 + c = 6.782329983 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + c = 6.782329983 + -7 Combine like terms: 7 + -7 = 0 0 + c = 6.782329983 + -7 c = 6.782329983 + -7 Combine like terms: 6.782329983 + -7 = -0.217670017 c = -0.217670017 Simplifying c = -0.217670017Subproblem 2
c + 7 = -6.782329983 Simplifying c + 7 = -6.782329983 Reorder the terms: 7 + c = -6.782329983 Solving 7 + c = -6.782329983 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + c = -6.782329983 + -7 Combine like terms: 7 + -7 = 0 0 + c = -6.782329983 + -7 c = -6.782329983 + -7 Combine like terms: -6.782329983 + -7 = -13.782329983 c = -13.782329983 Simplifying c = -13.782329983Solution
The solution to the problem is based on the solutions from the subproblems. c = {-0.217670017, -13.782329983}
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