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Simplifying 8c2 + 21c + 10 = 0 Reorder the terms: 10 + 21c + 8c2 = 0 Solving 10 + 21c + 8c2 = 0 Solving for variable 'c'. Factor a trinomial. (2 + c)(5 + 8c) = 0Subproblem 1
Set the factor '(2 + c)' equal to zero and attempt to solve: Simplifying 2 + c = 0 Solving 2 + c = 0 Move all terms containing c to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + c = 0 + -2 Combine like terms: 2 + -2 = 0 0 + c = 0 + -2 c = 0 + -2 Combine like terms: 0 + -2 = -2 c = -2 Simplifying c = -2Subproblem 2
Set the factor '(5 + 8c)' equal to zero and attempt to solve: Simplifying 5 + 8c = 0 Solving 5 + 8c = 0 Move all terms containing c to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 8c = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 8c = 0 + -5 8c = 0 + -5 Combine like terms: 0 + -5 = -5 8c = -5 Divide each side by '8'. c = -0.625 Simplifying c = -0.625Solution
c = {-2, -0.625}
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