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1 Answer

9 votes

Answer:

A. x² - x

General Formulas and Concepts:

Pre-Algebra

  • Distributive Property

Algebra I

  • Terms/Coefficients/Degrees
  • Expand by FOIL (First Outside Inside Last)

Geometry

  • Area of a Rectangle: A = lw

Explanation:

Step 1: Define

l = x

w = x - 1

Step 2: Find A

  1. Substitute [AR]: A = x(x - 1)
  2. Distribute x: A = x² - x
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