Respuesta :

Space

Answer:

A) 15x - 12

General Formulas and Concepts:

Pre-Algebra

  • Distributive Property

Algebra I

  • Combining Like Terms

Step-by-step explanation:

Step 1: Define

5x(3 - 12x) - 3(4 - 20x²)

Step 2: Simplify

  1. Distribute:                         15x - 60x² - 12 + 60x²
  2. Combine like terms:         15x - 12