Respuesta :

Space

Answer:

x³ + 2x² - 15x

General Formulas and Concepts:

Algebra I

  • Expand by FOIL (First Outside Inside Last)
  • Combining Like Terms

Step-by-step explanation:

Step 1: Define

x(x - 3)(x + 5)

Step 2: Expand

  1. Distribute x:                    (x² - 3x)(x + 5)
  2. FOIL:                                x³ + 5x² - 3x² - 15x
  3. Combine like terms:       x³ + 2x² - 15x