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Murrr4er [49]
3 years ago
7

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

Mathematics
1 answer:
kirza4 [7]3 years ago
3 0

Answer:

7m³ - 11m² + 5m + 17

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Distributive Property

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

3m³ - 4m² + 8 - (-4m³ + 7m² - 5m - 9)

<u>Step 2: Simplify</u>

  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
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