Answer:
-100d⁴ + 125d²s - 6s²
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Algebra I
- Terms/Coefficients
- Expand by FOIL
Explanation:
Step 1: Define
Identify
(-20d² + s)(5d² - 6s)
Step 2: Expand
- FOIL: -100d⁴ + 120d²s + 5d²s - 6s²
- [Addition] Combine like terms: -100d⁴ + 125d²s - 6s²