Which one is not a polynomial?

Select one:

A. 20

B. x2

C. x-2 + 4x3

D. (x - 2)2

Question 2

What is the degree of -13x3 + 2x2 - 8x - 6?

Select one:

A. 13

B. 3

C. 2

D. 1

Question 3

Compute (2x2 - 6x + 7) + (3x3 - 3x).

Select one:

A. 5x5 - 9x + 7

B. 5x2 - 3x + 7

C. 6x3 - 6x + 7

D. 3x3 + 2x2 - 9x + 7

Question 4

Compute (12x3 - x2 - x + 4/3) + (x3 + x2 + x - 1/3).

Select one:

A. 11x3 - 2x2 - 2x + 5/3

B. 13x3 - x2 + x - 1/3

C. 13x3 - x2 + 2x + 1

D. 13x3 + 1

Question 5

Compute (12x3 - x2 - x + 4/3) - (x3 + x2 + x - 1/3).

Select one:

A. 11x3 - 2x2 - 2x + 5/3

B. 13x3 - x2 + x - 1/3

C. 13x3 - x2 + 2x + 1

D. 13x3 + 1

Question 6

Compute -32(-2)3.

Select one:

A. -72

B. 72

C. -36

D. 36

Question 7

Compute (-4y2)3.

Select one:

A. -4y5

B. -4y6

C. -64y6

D. 64y6

Question 8

Compute (-5x4)(4x5)

Select one:

A. -20x9

B. -20x20

C. -9x9

D. -x9

Question 9

Compute 5x3(6x2 - 2x + 3).

Select one:

A. 11x3 - 7x + 8

B. 30x3 -10x2 + 15

C. 30x5 -10x4 + 15x3

D. 30x6 -10x5 + 15x4

Question 10

Compute (x + 3)(x + 4).

Select one:

A. x2 + 12x + 7

B. 2x2 + 12x + 7

C. x2 + 7x + 12

D. 2x2 + 7x + 12

Question 11

Compute (x + 3)(x - 4).

Select one:

A. x2 + 7x - 12

B. x2 + 7x + 12

C. x2 + x - 12

D. x2 - x - 12

Question 12

Compute (x2 + 4)(x2 - 4).

Select one:

A. x4 + 16

B. x4 - 16

C. x4 + 8x2 - 16

D. x4 - 8x2 + 16

Question 13

Compute [(1/4)x + 4][(3/4)x - 1].

Select one:

A. (3/4)x2 + x + 4

B. (3/16)x2 - x + 4

C. (3/16)x2 + (11/4)x - 4

D. x2 + x - 4

Question 14

Compute (5x + 4)2.

Select one:

A. 25x2 + 16

B. 10x2 + 20x + 16

C. 10x2 + 40x + 16

D. 25x2 + 40x + 16

Question 15

Compute (x - 2)2(x + 2)2.

Select one:

A. x4 -16x2 - 16

B. x4 -8x2 + 16

C. x4 -16x2 - 32

D. x4 -4x2 + 16