Addition Subtraction and Multiplication of Polynomials

(7x - x²) - (9x² + 2x) =

• 10x² + 5x

• -10x² - 5x

• - 5x + 10x²

• 5x - 10x²

What will the subtraction sign in between the polynomials do to the second polynomial?

• Change all of it's signs

• Nothing

• Change the sign of the first term

What operation is being done between these two polynomials?

• Addition

• Subtraction

• Multiplication

• Division

After combining like terms, what would the final answer be in this problem?

• 18x

• -8x

• 32x

• 20x

When using synthetic division, what operation is performed on the values inside the box?

• Addition

• Subtraction

• Multiplication

• Division

What two methods are most efficient for multiplying two polynomials together? (Select all answers that apply)

• Box Method

• Foil or Distribution Method

• Synthetic Division

• Long Division

Which operation, when performed on two polynomials, always results in a polynomial? Select all that apply.

• ADDITION

• DIVISION

• SUBSTRACTION

• MULTIPLICATION

Polynomials are closed under Addition

• True

• False

Polynomials are closed under multiplication

• True

• False

(5 + 3x) + (x - 12) =

• 4x + 7

• 4x - 7

• 7x - 4

• 4x - 17