Perform the operation below:

(4x6 + 14x4 + 6) - (-13x4 + 2x6 - 6)

Select one:

a. 2x6 + 27x4 + 12

b. 2x6 + 16x4 + 0

c. 2x6 + 27x4 + 0

d. 41x10

Question 2

X5 * X7 * X6

Select one:

a. x41

b. x12

c. x18

d. x13

Question 3

2x7(-3x6 + 7x3 - 5)

Select one:

a. -6x6 + 14x3 - 10

b. -6x13 + 14x10 - 10x7

c. -6x13 + 7x3 - 5

d. -6x13 + 14x10

Question 4

If x = 1 and y = 2, evaluate 5x2y + 4xy - 4y.

Select one:

a. 14

b. 24

c. 18

d. 10

Question 5

Perform the indicated operation

(8a - 8b)(5a + 9b)

Select one:

a. 40a2 + 32ab - 72b2

b. 40a2 - 40ab - 72b2

c. 40a2 + 72ab - 72b2

d. 40a2 + 32ab + 32b2

Divide:

(18x8 - 30x3 + 6x2) / 6x

Select one:

a. 18x7 - 30x2 + 1

b. 3x7 - 5x2 + x

c. 3x9 - 5x4 + x

d. 3x8 - 5x3 + x2

Question 7

Simplify:

(7y3)3 y15

Select one:

a. 343/y24

b. 7/y6

c. 343/y6

d. 343/y9

Question 8

Write 2.34 x 10-4 in decimal notation.

Select one:

a. -234,000

b. 0.0000234

c. 0.00234

d. 0.000234

Question 9

Simplify:

(32.8 x 10-11) (8 x 108)

Select one:

a. 4.1 x 10-18

b. 4.1 x 10-19

c. 4.1 x 10-20

d. 4.1 x 10-3

Question 10

Factor completely:

18y4 - 18y3 - 36y2

Select one:

a. 9y2 (2y - 4) (y + 1)

b. 9y (2y2 + 4) (y - 1)

c. 9y2 (2y + 4) (y - 1)

d. Prime

Factor:

36x2 - 25

Select one:

a. Prime

b. (6x + 5)2

c. (6x - 5)2

d. (6x + 5) (6x - 5)

Question 12

Factor: 162x2 + 288x + 128

Select one:

a. Prime

b. 2(9x - 8)2

c. 2(9x + 8)2

d. 2(9x + 8)(9x - 8)

Question 13

Solve the quadratic equation below:

x(x - 1) = 20

Select one:

a. {-4,5}

b. {4,5}

c. {1,20}

d. {-5,-4}

Question 14

Solve the quadratic equation below:

(x + 5)(x + 1) = 60

Select one:

a. {-5,-1}

b. {-5,11}

c. {1,5}

d. {-11,5}

Question 15

The width of a rectangle is 6 feet less than twice its length. If its area is 108 square feet, find the dimensions of the rectangle.

Select one:

a. width: 9 ftlength: 12 ft

b. length: 3 ftwidth: 36 ft

c. length: 9ftwidth: 12 ft

d. length: 6 ftwidth: 6 ft

Find all numbers for which the rational expression below is undefined.

(x2 - 25) (x2 - 13x + 36)

Select one:

a. x = 0

b. x = -4, x = -2

c. x = 4, x = 9

d. x = -5, x = 5

Question 17

[ (x2 - 9x) (x - 5) ] + [ 20 (x - 5) ]

Note: It is easier to solve this if you first rewrite the problem in fractions.

Select one:

a. x - 4

b. (x2 - 9x + 20) / (x - 5)

c. x + 4

d. x - 5

Question 18

[(5 - x) (x - 7)] - [(2x - 3) (7 - x)]

Select one:

a. (x + 2) / (x - 7)

b. - (x + 2) / (x - 7)

c. - (x + 8) / (x - 7)

d. (x + 8) / (x - 7)

Question 19

Perform the indicated operation:

[(3y - 3) (y - 7)2] [(y2 - 1) (y - 7)]

Select one:

a. 3/(y + 1)

b. 3/(y-7)(y - 1)

c. 3/(y - 7)(y + 1)

d. [3(y - 1)2(y + 1)] / (y - 7)3

Question 20

Solve:

1 + (9/(x - 4))

Select one:

a. 13/(x - 4)

b. (x + 13)/(x - 4)

c. 5/(x - 4)

d. (x + 5)/(x - 4)