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Simplifying c2 + -18cf + 81f2 = 0 Reorder the terms: -18cf + c2 + 81f2 = 0 Solving -18cf + c2 + 81f2 = 0 Solving for variable 'c'. Factor a trinomial. (c + -9f)(c + -9f) = 0Subproblem 1
Set the factor '(c + -9f)' equal to zero and attempt to solve: Simplifying c + -9f = 0 Solving c + -9f = 0 Move all terms containing c to the left, all other terms to the right. Add '9f' to each side of the equation. c + -9f + 9f = 0 + 9f Combine like terms: -9f + 9f = 0 c + 0 = 0 + 9f c = 0 + 9f Remove the zero: c = 9f Simplifying c = 9fSubproblem 2
Set the factor '(c + -9f)' equal to zero and attempt to solve: Simplifying c + -9f = 0 Solving c + -9f = 0 Move all terms containing c to the left, all other terms to the right. Add '9f' to each side of the equation. c + -9f + 9f = 0 + 9f Combine like terms: -9f + 9f = 0 c + 0 = 0 + 9f c = 0 + 9f Remove the zero: c = 9f Simplifying c = 9fSolution
c = {9f, 9f}
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