Unit Test #37

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:

 

Simplify 3x − 4y − (4x − 7y) A. x − 11y
B. 3y − x
C. 3x − y
D. -x − 3y
Answer 1:

 

Q2:

 

(5x + 2y) − (2x − 5y) = A. 3x + 3y
B. 3x − 3y
C. 3x − 7y
D. 3x + 7y
Answer 2:

 

Q3:

 

Expand and simplify 3(2x + 1) +2(3x + 2) A. 12x + 3
B. 12x + 7
C. 12x + 5
D. 5x + 7
Answer 3:

 

Q4:

 

Simplify (x + 3) − (x − 7) A. 10
B. 2x + 10
C. -4
D. -10
Answer 4:

 

Q5:

 

Expand -3(x − 4) A. -3x + 12
B. -3x − 12
C. -3x − 4
D. 3x − 12
Answer 5:

 

Q6:

 

3(x − 2) = 3x − 6 is an example of which mathematical property? A. Associative
B. Distributive
C. Commutative
D. Cumulative
Answer 6:

 

Q7:

 

Expand and simplify 3 − 2(2 − x) A. 2 − x
B. 2x − 1
C. 2x + 1
D. -2x − 1
Answer 7:

 

Q8:

 

x − x(1 − x) − x = A. x2 − x
B. 1
C. -x2 − x
D. x2
Answer 8:

 

Q9:

 

Expand -3(3 − 3x) − 3x  A. 6x − 9
B. 9 − 12x
C. -9 − 12x
D. -6x − 9
Answer 9:

 

Q10:

 

abc(ab + 2ab) = A. 2abc
B. 3a2b2c2
C. 3a2b2c
D. 2a4b4c4
Answer 10: