Subtraction and Additions of Polynomials

Terms in a polynomial are separate by

• A. Parenthesis

• B. multiplication/division

• C. constant

• D. addition/ subtraction

(-8x - 3) + (7x + 5)

• -x + 2

• -x - 2

• x + 2

• x - 2

What must be subtracted from zero to get -5a

• 5a

• -5a

• a

• none of these

Simplify the following expression.

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

• 4x + 7

• 4x - 7

• 7x - 4

• 4x - 17

(6x² + x) + (7x² - x) =

• 13x² + 2x

• 13x² - 2x

• 13x²

• -13x² 

(5x³- x² + 4) - (3x³ - 2x² - 3)

• -2x³ - 3x² + 7

• -2x³ + x² + 1

• 2x³ + x² + 7

• 4x³ - 3x² + 7

Simplify each expression.

Simplify the expression.

(4a³ - 8a - 4a²) + (7a³ - 7 - 6a)

• 11a³ - 4a² - 14a - 7

• 3a³ - 4a² - 14a - 7

• 5a³ - 4a² - 20a - 7

• 5a³ - 9a² - 20a - 7

Add: 5x – 2 + y and –3y + 5x + 2

• -10x – 2y

• 10x – 2y

• 10x + 2y

• 2x – 10y