Question

I need help with this, anyone nice enough to help? :’)

Answer 1

Answer:

7m³ - 11m² + 5m + 17

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Distributive Property

Algebra I

• Terms/Coefficients

Step-by-step explanation:

Step 1: Define

3m³ - 4m² + 8 - (-4m³ + 7m² - 5m - 9)

Step 2: Simplify

1. [Distributive Property] Distribute negative:                                                  3m³ - 4m² + 8 + 4m³ - 7m² + 5m + 9
2. Combine like terms (m³):                                                                                7m³ - 4m² + 8 - 7m² + 5m + 9
3. Combine like terms (m²):                                                                                7m³ - 11m² + 8 + 5m + 9
4. Combine like terms (Z):                                                                                   7m³ - 11m² + 5m + 17