6.4: Adding and Subtracting Polynomials

Bell Ringer:

Combine: (2x + 3) + (4x – 1)

Mini Lesson:

• Use algebra tiles or diagrams to model combining terms.
  
  

• Add and subtract vertically and horizontally.
  
  

• Strategy: Line up like terms and combine them.
  
  

Practice Examples:

1. (3x² + x + 1) + (2x² – 4)
   
   

2. (5x – 3) – (2x + 1)