Polynomial and Function Operations

Simplify the following expression:
-8 (5b + 2) -7 (b - 5)

• -33b + 19
• -47b² +  21
• 33b - 19
• -47b +19

(4x+1)(5x−2)

• 20x² + 3x − 2
• 20x² − 11x + 5
• 20x² − 18x + 2
• 20x² − 3x − 2

(3x − 6)(7x + 7)

• 21x² − 63x + 42
• 21x² − 21x − 42
• 21x² − 42
• 21x² + 63x + 42

5x²(2x - 3)

• 5x² + 2x - 3
• 10x³ - 15x²
• -5x2
• 7x³ - 15x²

(2x³ + 5x² + 9) ÷ (x + 3)

• 2x² - x + 3
• 2x³ - x² + 3x
• 2x² + 11x + 33 + 108/x+3
• 2x² - 5x + 12

x³-3x²-10x+24 ÷ x+3

• x²-7x+5
• x-8
• x²-6x+8
• x+9

-2x²+4x+48 ÷ x+4

• -2x+12
• 2x+12
• -4x+9
• 4x+9

x²-6x+8 ÷ x-2

• x-6
• x-9 R=2
• x-4
• x-8 R=3

If g(x)= 4x - 4 and f(x)= 5x + 4, find (g+f)(x)

• 20x

• 9x + 8

• 9x - 8

• 9x

Given f(x) = 2x and g(x) = 2x - 7, find (f+g)(x).

• -4x - 7

• 4x - 7

• 4x - 14

• -4x + 14