Math A

Mixed Practice
Add & Subtract Polynomials

 

Directions:  For the following problems, choose an answer from among the multiple choices.  

 

Warning!  Look carefully to see if the operation is addition or subtraction.

 

 

1.

  (5x – 1) + (10x2 + 7x) - (2x + 4)

 

Choose:

10x2 + 10x - 5
 10x² + 7x + 3
10x2 + 14x - 5

 

 

2.

  (16x2 + 2) - (10x2 - 8) + (3x2 - 4)

 

Choose:

9x2 + 10
 6x2 - 10  
9x2 + 6

 

 

3.

  (3m - 4q - 6) + (12q + 5) - (-10)

 

 

Choose:

3m + 8q + 9
3m - 8q + 1
3m + 8q + 21

 

 

4.

  (4x + 2y) - (y + 8) + (-3x - 4y - 1)

 

Choose:

x + 3y + 7
x – 3y - 9
7x + 5y + 9

 

 

5.

  Subtract (-4x2 - 5y2 - 8) from
(2x2 + 3y2 + 8).

 

 

Choose:

-2x2 -2y2
-2x2 + 8y2 + 16
6x2 + 8y2 + 16

 

 

6.

  (x2 + 4x) + (x2 + 8x) - (3x – 7) 

 

Choose:

2x2 + 9x - 7
 2x2 + 9x + 7
2x2 - 9x + 7

 

 

7.

  3x2 - (2x2 - 12) + (- 20)

 

 

Choose:

x2 - 32
x2 + 8  
x2 - 8

 

 

8.

  (6x - 4) + (2x + 4y + 5) – (-3y)

 

 

Choose:

8x + y - 1
 8x + 7y + 1
8x - 7y - 9

 

 

9.

  (x + 3) + (x - 3) – ( -x + 1)

 

 

Choose:

x + 1
3x + 1
3x - 1

 

 

10.

  If (-2x2 +3x -9) is subtracted from 
(4x2 - 6x +9), the result is: 

 

 

Choose:

6x2 - 3x
 6x2 - 9x + 18
2x2 - 9x + 18

 

 

11.

  Find the missing term:
(4x + ___) + (2x + 3) - (x + 1) = 5x + 3

 

 

Choose:

8
2
1

 

 

12.

  Find the missing term:
(x2+8x+__) - (___+ 7x +4) = -3x2+x+11  

 

Choose:

5; 4x2 
15; 4x2
15; -2x2

 

 

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