Adding and Subtracting Polynomials

What is the sum of 3x+10x?

• 13x²

• 13x

• 7x²

• 5x

If you add 20x and -5x, what is the sum?

• 15x

• -15x

• 25x

• -25x

Combine like terms: 3w - 8k + 12w + w - 5k

• 15w - 13k

• 16w - 13k

• 16w + 3k

• 15w + 3k

Combine like terms:

-m + 17m - 12c + 3m + 4c + 21c

• 19m + 13c

• 21m + 37c

• 20m + 12c

• 19m - 12c

 $Simplify:\ \ -6h^2\ +2j\ -\ 14h^2-\ h^2\ +\ 15j$  

•  $-20h^2+\ 13j$  

•  $20h^2\ +\ 17j$  

•  $-21h^2\ +\ 17j$  

•  $-21h^4\ +\ 17j$  

Simplify: 29u + 4d - 13u + 2u + 7d

• 18u + 11d

• 44u + 11d

• 18u - 3d

• 31u + 28d

Add or Subtract to Simplify:
(4x²+ x) - (x²+ 2x)

• 3x² - x
• 4x² + 2x
• 3x² + 3x
• 3x² + 2x

Add or Subtract to Simplify:
(4n⁴ - 8n + 4) - (8n² + 4n⁴ + 1)

• -8n² - 8n + 3 
• -7n² - 8n + 3 
• -6n² - 8n + 3
• -7n² - 4n + 3

Add or Subtract to Simplify:
(5x + x² - 4) - (4x - x² + 6)

• 2x² + x + 2 
• x + 2
• 2x² + x - 10 
• x - 10 

Add or Subtract to Simplify:
(x⁵ + x³) - (6x - x³ + 6x⁵)

• -5x⁵ + 2x³ - 6x
• 7x⁵ - 6x
• -5x³ + 2x² - 6x
• -5x⁵ - 6x