Respuesta :

Space

Answer:

4x³ - 4x² - 4x - 8

General Formulas and Concepts:

Pre-Algebra

  • Distributive Property

Algebra I

  • Combining Like Terms

Step-by-step explanation:

Step 1: Define expression

(4x³ - 12x² - 5) - (-8x² + 4x + 3)

Step 2: Simplify

  1. Distribute negative:                    4x³ - 12x² - 5 + 8x² - 4x - 3
  2. Combine like terms (x²):             4x³ - 4x² - 5 - 4x - 3
  3. Combine like terms (Z):              4x³ - 4x² - 4x - 8

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