Addition Subtraction Multiplication of Polynomials

(9x + 8a) + (6x + a) =

• 15x + 9a

• 15x + 8a

• 14x + 9a

• 14x + 8a

(6x² + x) + (7x² - x) =

• 13x² + 2x

• 13x² - 2x

• 13x²

• -13x² 

Find the sum.
(3y² + y³ - 5) + (4y² -4y + 2y³ + 8)

• 3y³ + 7y² - 4y + 3

• 4y² + 3y³ - y + 3

• -y⁴ + 2y³ -y - 4

• 4y³ + 3y² -3y + 1

Simplify the expression.
(4a³ - 8a - 4a²) + (7a³ - 7 - 6a)

• 11a³ - 4a² - 14a - 7 

• 5a³ - 4a² - 14a - 7 

• 5a³ - 4a² - 20a - 7 

• 5a³ - 9a² - 20a - 7

Find the difference. 
(3- 2x + 2x²) - (4x -5 +3x²)

• x_² + 6x + 8

• 2x² + 5x - 7

• -x² -6x + 8

• -2x² + 11x - 4

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

• -8n² - 8n + 3 

• -7n² - 8n + 3 

• -6n² - 8n + 3

• -7n² - 4n + 3

Terms in a polynomial are separate by

• A. Parenthesis

• B. multiplication/division

• C. constant

• D. addition/ subtraction

f(x) = 9-3x
g(x) = 5x-7
Find f(x)+g(x). 

• 14x-10

• -8x+2

• 2x+2

• 2x-2

f(x) = 4x+8
g(x) = x+3,
Find f(x) * g(x)

• 4x²+24

• 4x²+20x+24

• 4x²+12x+24

• 4x²+4x+24

f(n)=n²+4n
g(n)=-n-5
Find f(n)+g(n)

• n²+3n-5

• -n³+2n-7

• n³+3n-3n

• n²-3n-5