Adding and Subtracting Polynomials

Which of the following are examples of like terms?

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

Add the polynomials.
(2x + 5y) + (3x - 2y)

• 3x + 5y
• 5x + 3y
• 5x + 7y
• 7xy + 1xy

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

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

What is the value of the coefficient?
−3x+6

• 3
• 6
• −3
• x

What is the value of the constant?
2x² + 4x − 5

• 2
• 4
• 5
• −5

Which is a variable in the following term: 2x³

• 2

• x

• 3

How many terms are in the expression
5y - 3rx + 7

• 1
• 2
• 3
• 4