Unit 7 Polynomials

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

Perform the indicated operation.

 $2x+x$  

•  $2x^2$  

•  $3x$ 

•  $3x^2$  
  

•  $2x$  
  

Factor Completely: x²-17x+72

• (x-9)(x+8)
• (x-9)(x-8)
• x(x-3)
• (x+9)(x+8)

• A
• B
• C
• D

3x² - 75

• 3( x + 5 ) ( x - 5 ) 
• Prime
• ( x + 5 ) ( x - 5 ) 
• 3( x - 5 ) ( x - 5 ) 

Factor Completely: 5x²-11x+6

• (5x+6)(x-1)
• (5x-6)(x-1)
• (2x-7)(x-3)
• (5x-6)(x+1)