Respuesta :

Space

Answer:

f(x)g(x) = x³ - 9x² + 9x - 81

General Formulas and Concepts:

Distributions - Expanding with FOIL (First, Outside, Inside, Last)

Step-by-step explanation:

Step 1: Define

f(x) = x² + 9

g(x) = x - 9

Find f(x) · g(x)

Step 2: Find

  1. Set up expression:                    f(x)g(x) = (x² + 9)(x - 9)
  2. Expand (FOIL):                           f(x)g(x) = x³ - 9x² + 9x - 81

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