Essay

Cost-Efficiency Analysis Using Polynomial Division

Imagine you are an operations analyst at a logistics company. You are modeling the average weekly processing cost per cargo unit. Your total weekly processing cost is modeled by the polynomial x411x27x6x^4 - 11x^2 - 7x - 6 and the number of active transport routes is modeled by the linear factor x+3x + 3. To find the average cost per route, you must perform polynomial long division to divide the cost by the number of routes: (x411x27x6)÷(x+3)(x^4 - 11x^2 - 7x - 6) \div (x + 3).

Your manager has asked for a detailed memo verifying the division process. Write an essay response that retrieves and explains the setup, calculations, and final result. Your essay must answer the following in detail:

  1. Why is a placeholder term needed in the dividend before starting the polynomial long division, what is the specific placeholder term for this problem, and how is the modified dividend written?
  2. Detail the step-by-step long division process, clearly showing what is divided, multiplied, and subtracted at each stage, and how intermediate terms are brought down.
  3. State the final quotient, expressing the numerical remainder as a fraction over the divisor.

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Updated 2026-06-03

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