Answer:
10x³ - 7x² - 7x + 4
General Formulas and Concepts:
Pre-Algebra
Algebra I
Explanation:
Step 1: Define
(10x³ - 3x - 5) - (7x² + 4x - 9)
Step 2: Simplify
- Distribute negative: 10x³ - 3x - 5 - 7x² - 4x + 9
- Combine like terms (x): 10x³ - 7x² - 7x - 5 + 9
- Combine like terms (Z): 10x³ - 7x² - 7x + 4