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Simplifying C(x) = 0.9x2 + 11x + -400 Multiply C * x xC = 0.9x2 + 11x + -400 Reorder the terms: xC = -400 + 11x + 0.9x2 Solving xC = -400 + 11x + 0.9x2 Solving for variable 'x'. Reorder the terms: 400 + -11x + xC + -0.9x2 = -400 + 11x + 0.9x2 + 400 + -11x + -0.9x2 Reorder the terms: 400 + -11x + xC + -0.9x2 = -400 + 400 + 11x + -11x + 0.9x2 + -0.9x2 Combine like terms: -400 + 400 = 0 400 + -11x + xC + -0.9x2 = 0 + 11x + -11x + 0.9x2 + -0.9x2 400 + -11x + xC + -0.9x2 = 11x + -11x + 0.9x2 + -0.9x2 Combine like terms: 11x + -11x = 0 400 + -11x + xC + -0.9x2 = 0 + 0.9x2 + -0.9x2 400 + -11x + xC + -0.9x2 = 0.9x2 + -0.9x2 Combine like terms: 0.9x2 + -0.9x2 = 0.0 400 + -11x + xC + -0.9x2 = 0.0 The solution to this equation could not be determined.
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