Case Study

Simplifying Multi-Variable Shipping Costs

As a senior analyst training the junior employee, write a brief procedural guide to help them recall the correct steps to factor the expression 4x2+8bx4ax8ab{}4x^2 + 8bx - 4ax - 8ab completely. In your guide, you must recall and outline:

  1. The first step, which is to identify and factor out the greatest common factor (GCF) of all four terms. Specify both the GCF and the resulting expression after factoring it out.
  2. The second step, which is to apply factoring by grouping to the expression inside the parentheses. Explain how the terms should be grouped into two pairs.
  3. The third step, which is to factor out the GCF of each binomial pair.
  4. The final step, which is to factor out the common binomial factor to state the completely factored expression.

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Updated 2026-06-05

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