Unit Test #10

Select your answers to the following 10 questions from the pop-up menus in the right hand column. Clicking the "Begin Test Again" button will clear all the answers.

 

 

Q1:

 

Which of the following is a cubic?
A. x2 + 2x + 3
B. (x - 3)(x +5)
C. x3 + x2 + 2x + 3
D. x2 + 2x + 3

Answer 1:

 

 

Q2:

 

What is the degree of the polynomial

x2 + 2x + 3x3 ?

A. 1
B. 2
C. 3
D. 4

Answer 2:

 

 

Q3:

 

Which are the solutions to the cubic equation

(x + 3)(x - 2)(x + 1) = 0 ?

A. 3, 2, 1
B. -3, -2, -1
C. 3, -2, 1
D. -3, 2, -1

Answer 3:

 

 

Q4:

 

If f(3) = 0, then which is a factor of f(x):
A. x - 3
B. 3
C. -3
D. x + 3

Answer 4:

 

 

Q5:

 

If R(x) =x4 - x - 16, then R(-1) = A. -14
B. -18
C. -16
D. 16

Answer 5:

 

 

Q6:

 

 
If f(x) = 2x2 - 6x - 9, then f(2) =
A. -13
B. -5
C. 13
D. 5

Answer 6:

 

 

Q7:

 

Which is a quadratic polynomial?

A. (x + 3)(x - 2)(x + 7)
B. (x + 3)2(x - 2)
C. (x + 2)(x - 5)
D. (x - 1)3

Answer 7:

 

 

Q8:

 

Which are the solutions to the cubic equation:

(2x + 3)(2x - 1)(x - 1) = 0 ?

A. x = -1.5, x = 0.5, x =1
B. x = 1.5, x = -0.5, x =-1
C. x = -1.5, x = -0.5, x =-1
D. x = 1.5, x = 0.5, x =1

Answer 8:

 

 

Q9:

 

If P(x) = x2 - 2x - 3, then f(-2) = A. -11
B. 5
C. -3
D. -2

Answer 9:

 

 

Q10:

 

Factorise x3 -3x2 - 10x + 24
A.(x + 2)(x + 3)(x - 4)
B. (x - 2)(x + 3)(x - 4)
C. (x - 2)(x + 3)(x + 4)
D. (x + 2)(x + 3)(x + 4)

Answer 10: