Adding and Subtracting Polynomials

Simplify: 4x² - 3x²

• 7x²

• 2x²

• x²

• -7x²

Which of the following are examples of like terms?

• 2 and 2x
• y³ and x³
• y and x
• -3x and 3x

Combine like terms to simplify:
 (5x + 2) + (4x + 5)

• 9x -7
• -9x-11
• 9x+7
• x+7

Simplify: -7xy + x + y + x - 3xy

• 10xy +2x + y

• -10xy + 2x + y

• -10xy + y

• -10xy + x + y

Classify the polynomial and give the degree:
5x³y²

• Monomial, 3
• Uninomial, 3
• Uninomial, 5
• Monomial, 5

• 2

• 7

• -2

• -7

Simplify each expression.
(4n⁴ - 8n + 4) - (8n² + 4n⁴ + 1)

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

Find the sum.
(2x² + 5x - 7) + ( 3 - 4x² + 6x)

• 2x² + 3x +1
• -2x² - 11x -4
• 2x² + 5x -7
• -2x² + 11x -4

Classify the polynomial and give the degree:
4x² + 2x - 1

• Binomial, 3
• Binomial, 2
• Trinomial, 3
• Trinomial, 2

What is the degree of the polynomial? 3x² + 5xy - 4x⁷y

• 7
• 8
• 2
• 3