WEEK 3 MATH QUIZ

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Question 1

Factor.

4x2 - 25x - 56

[removed]

A.

(x - 7)(x - 8)

[removed]

B.

(7x + 4)(x - 8)

[removed]

C.

(4x + 7)(x - 8)

[removed]

D.

(x + 4)(x - 8)

Question 2

Factor.

x2 + 16x + 64

[removed]

A.

(x + 8)2

[removed]

B.

(x - 8)2

[removed]

C.

Prime

[removed]

D.

(x + 8)(x - 8)

Question 3

Factor.

y2 - 64

[removed]

A.

(y + 8)(y - 8)

[removed]

B.

(y - 8)(y - 8)

[removed]

C.

(y2 + 8)(y2 - 8)

[removed]

D.

(y + 64)(y - 64)

 

 

 

 

Question 4

Add.

(9a3 + 3a2) + (5a3 + 6a2)

[removed]

A.

14a3 + 9a2

[removed]

B.

23a5

[removed]

C.

14a6 + 9a4

[removed]

D.

23a10

 

Question 5

Perform the indicated operations.

(5s2 - 3s) - (2s2 - 7s) + ( 5s2 - 6)

[removed]

A.

8s2 -10s - 6

[removed]

B.

12 s2 + 4s - 6

[removed]

C.

12 s2 -10s - 6

[removed]

D.

8s2 + 4s - 6

 

Question 6

Multiply.

(4m2)(5m4)

[removed]

A.

-20m

[removed]

B.

20m6

[removed]

C.

-20m6

[removed]

D.

20m

 

 

Question 7

Add.

(-9 + 3n6 + 3n5) + (2n6 + 5n5 + 6)

[removed]

A.

-7n6 + 8n5 + 9

[removed]

B.

10n11

[removed]

C.

5n6 + 8n5 - 3

[removed]

D.

5 + 8n6 - 3n5

 

Question 8

Multiply.

(2x + 9)(2x - 9)

[removed]

A.

2x2 - 36x - 81

[removed]

B.

4x2 - 81

[removed]

C.

4x2 - 36x - 81

[removed]

D.

4x2 + 36x - 81

 

Question 9

Add.

(9 + 8x2 + 9x4 - 7x3) + (-2x3 + 2x2 + 2 + 5x4)

[removed]

A.

15x18 + 11

[removed]

B.

14x4 - 9x3 + 10x2 + 11

[removed]

C.

14x8 - 9x6 + 10x4 + 11

[removed]

D.

7x4 + 7x3 + 11x2 - 2

 

 

Question 10

Multiply.

-12x(6x - 11)

[removed]

A.

-72x2 - 11x

[removed]

B.

-72x2 + 132x

[removed]

C.

6x2 + 132x

[removed]

D.

60x2

Question 11

Multiply.

4(5x)

[removed]

A.

9x

[removed]

B.

20

[removed]

C.

20x

[removed]

D.

9

 

Question 12

Factor.

6x2 - 53x + 40

[removed]

A.

(x + 8)(6x - 5)

[removed]

B.

(x - 8)(6x - 5)

[removed]

C.

(5 - 6x)(6x - 5)

[removed]

D.

(6x + 35)(6x - 5)

 

 

 

 

Question 13

Multiply.

(2x - 7)(x - 4)

[removed]

A.

2x2 - 15x + 28

[removed]

B.

2x2 + 50x + 28

[removed]

C.

x2 - 15x + 50

[removed]

D.

x2 + 28x - 15

Question 14

Subtract.

(-8a3 - 14a2) - (-14a3 - 18a2)

[removed]

A.

6a3 - 32a2

[removed]

B.

-22a3 - 32a2

[removed]

C.

6a3 + 4a2

[removed]

D.

10a5

 

Question 15

Perform the indicated operations.

(4x2 + 5) - (2x2 - 6) + ( 4x2 - 10x)

[removed]

A.

10x2 + 10x - 1

[removed]

B.

6x2 - 10x - 1

[removed]

C.

10x2 - 10x + 11

[removed]

D.

6x2 - 10x + 11

 

 

 

Question 16

Subtract.

(8n7 + 2n6 + 17) - (5n6 + 5n7 + 15)

[removed]

A.

3n7 - 3n6 + 32

[removed]

B.

3n7 + 7n6 + 32

[removed]

C.

2n13

[removed]

D.

3n7 - 3n6 + 2

 

Question 17

Multiply.

-8x5(11x3 + 6)

[removed]

A.

-88x8 - 48x5

[removed]

B.

-136x5

[removed]

C.

-88x3 - 48

[removed]

D.

-88x8 + 6

 

Question 18

Multiply.

(x + 6)(x - 6)

[removed]

A.

x2 + 12x - 36

[removed]

B.

x2 - 36

[removed]

C.

x2 - 12x - 36

[removed]

D.

x2 - 12

 

 

Question 19

Multiply.

-8x2(-10x4 + 9x3)

[removed]

A.

80x6 - 72x5

[removed]

B.

8x2

[removed]

C.

80x6 + 9x3

[removed]

D.

8x6 + 8x5

 

Question 20

Factor.

4x2 + 33x + 35

[removed]

A.

(x - 28)(x + 7)

[removed]

B.

(4x + 5)(x + 7)

[removed]

C.

(4x - 28)(x + 7)

[removed]

D.

(x + 5)(x + 7)

 

 

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