Unit Test #32

Select your answers to the following 5 questions from the pop-up menus in the right hand column. When you are satisfied with your answers, fill in your name in the spaces provided below the test, and click the "Submit Test" button. Clicking the "Begin Test Again" button will clear all the answers.

 

 

Q1:

 

Find p if x3 + x2 - 14x - 24 
= (x + 3)(x + 2)(x - p)

A. -2

B. -4

C. 2

D. 4

Answer 1:

 

 

Q2:

 

 

Use the Factor Theorem to factorise 
x3 - x2 - x + 1

 

A. (x2 +1)(x + 1)

B. (x - 1)(x + 1)2

C. (x + 1)(x -1)2

D. (x2 - 1)(x + 1)

Answer 2:

 

 

Q3:

 

Factorise x3 - 3x2 - 4x

A. x(x - 4)(x + 1)

B. (x2 - 4)(x - 1)

C. x(x +4)(x + 1)

D. x(x - 4)(x - 1)

Answer 3:

 

 

Q4:

 

 

Factorise f(x) = x3 + x2 - 10x + 8

 

A. (x - 2)(x + 4)(x - 1)

B. (x + 2)(x - 4)(x - 1)

C. (x - 2)(x - 4)(x - 1)

D. (x - 2)(x + 4)(x +1)

Answer 4:

 

 

Q5:

 

Solve the equation x3 + x2 - 10x + 8 = 0

A. x = {1 ,-2, 4}

B. x = {-1 ,-2, 4}

C. x = {1 , 2, -4}

D. x = {1 , 2, 4}

Answer 5: