Pre-Calculus Quiz #8

-3x²+x+4=0
How many roots does this equation have?

• 2
• 1
• 0
• 4

Find all the real zeros of the function

y = 2x³ - 19x² + 38x + 24 given that (x-4) is a factor.

• x = 1/2, -6

• x = -1/2, 6

• x = 4, -1/2, 6

• x = -4, 1/2, -6

Find all zeroes given a factor of (x+3).

f(x) = 2x³ + 5x² - 6x - 9

• -1,-3,-3

• -1,-3,3/2

• 3,3,3

• -3,2/3,-1

Is (x-3) a factor of
(x³ - 3x² + 2x + 2)?

• Yes
• No

What is the total number of roots for the following equation?
y = 4x⁶ - 12x⁵ - x⁴ + 2x³ - 6x² - 5x + 10

• 4
• 5
• 6
• 7

Find all the real zeros of the function

f(x) = 2x³ - 19x² + 38x + 24 given that (x-4) is a factor.

• x = 1/2, -6

• x = -1/2, 6

• x = 4, -1/2, 6

• x = -4, 1/2, -6

Identify the zeros of f(x) = x²-36 .

• 4, -9

• 6, -6

• 18, -18

• 36, -36

f(x)=(x+4)(x-3)(x-2)
List the zeros for this function.

• x=-4, x=3, x=-2
• x=-4, x=3, x=2
• x=-4, x=-3, x=2
• x=4, x=3, x=2

Find all zeros, one factor has been given.

f(x) = x³-3x²-x+3; (x-3)

• 2,4,3

• -1,1,3

• 3,2,1

• 4,5,6

Find all solutions, one factor has been given.

f(x) =x³-3x²-25x+75; (x-5)

• 5,-3,5

• 5,5,5

• 3,-5,5

• 1,1,1