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