Polynomial Quiz (#2)

Multiply the polynomials

(x + 6) ( x - 4)

• x^2 + 10x + 24
• x^2 - 2x + 24
• x^2 + 2x + 24
• x^2 + 2x - 24

Multiply the polynomial

2 (x- 3)( x+ 14)

• 2x^2 - 22x + 84
• 2x^2 + 28x - 42
• 2x^2 + 22x - 84
• 2x^2 + 10x - 84

Factor the polynomial

x^2 - 3x -10

• (x - 5)(x + 2)
• (x - 10)(x + 1)
• (x + 5)(x - 2)
• (x - 2)(x + 5)

Factor the polynomial

x^2 - 36

• (x - 12)(x + 12)
• (x - 6)(x + 6)
• (x - 6)(x - 6)
• (x + 6)(x + 6)

Write the composition of the functions.

Given: f(x) = x^2, g(x) = x-1, h(x) = 2x + 7

h (f(x))

• 2x + 7
• x^2 + 1
• 2x^2 + 1
• 2x^2 + 7

Write the composition of the functions.

Given: f(x) = x^2, g(x) = x-1, h(x) = 2x + 7

f(f(x))

• x^4
• x^3
• 2x^2 + 7
• x^2 - 1

State the domain of the following function

f(x) = 1 / x

• All real numbers except zero, or (-∞, 0) ∪ (0, ∞).
• Only positive real numbers
• All real numbers including zero
• Only negative real numbers

Simplify:

• r² - 3r -2
• r² - 3
• -2r -2 
• r² - 2r -3

p(x) = 3x + 4
q(x) = 2x²
Find p(q(x))

• 10x²
• 18x² + 4
• 6x² + 4

What is the DOMAIN?

• x < 4

• x ≤ 4

• y ≤ 4

• All Real Numbers