can someone pleassse help with agerbra 2?

Question 1 (Multiple Choice Worth 4.0 points)

Factor: c3d3 + 64.

(cd + 4)(c2d2 - 4cd + 16)

(cd + 4)(c2d2 + 4cd + 16)

(cd - 4)(c2d2 - 4cd - 16)

(cd - 4)(c2d2 + 4cd - 16)

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Question 2 (Multiple Choice Worth 4.0 points)

Find the perimeter of a rectangular room with a length of (3x + 5) and a width of (x - 4).

3x2 - 20

3x2 + x - 20

4x + 1

8x + 2

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Question 3 (Multiple Choice Worth 4.0 points)

What is the Greatest Common Factor of 6a2b3 + 15a2b - 27a2b2?

3

3ab

3a2b

3a2b2

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Question 4 (Multiple Choice Worth 4.0 points)

Solve: a2 + 24 = -10a.

6 and 4

- 6 and - 4

12 and 2

-12 and -2

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Question 5 (Multiple Choice Worth 4.0 points)

The following problem was factored by grouping. What mistake was made in the process?

4x3 + 6x + 3x2 - 9

(4x3 + 6x) + (3x2 - 9)

2x(x2 + 3) + 3(x2 - 3)

(x2 + 3)(2x + 3)

The problem cannot be factored into 2 groups of 2 factors.

3x2 - 9 is actually the difference of two squares.

The factors in the last step should be reversed.

The 6x and 3x2 should be reversed.

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Question 6 (Multiple Choice Worth 4.0 points)

Find the area of a rectangular room that has a width of (x - 4) and a length of (3x + 7).

4x + 3

3x2 - 28

3x2 -12x - 28

3x2 - 5x - 28

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Question 7 (Multiple Choice Worth 4.0 points)

What is the degree of the polynomial 4x3y - 3xy2 + 6xy?

1

2

3

4

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Question 8 (Multiple Choice Worth 4.0 points)

Solve: 3x2 - 18 = 0.

+3

+6

+

+

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Question 9 (Multiple Choice Worth 4.0 points)

Factor: r2 - 7r – 30.

(r + 7)(r - 30)

(r + 3)(r - 10)

(r + 6)(r - 5)

(r + 2)( r - 15)

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Question 10 (Multiple Choice Worth 4.0 points)

Simplify: (6x - 4) - (3 - x) + (x + 2).

7x - 5

7x - 3

8x - 5

8x - 9

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Question 11 (Multiple Choice Worth 4.0 points)

Expand: (4x - 1)3.

12x3 - 3

64x3 - 1

12x3 - 8x2 + 12x - 1

64x3 - 48x2 + 12x - 1

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Question 12 (Multiple Choice Worth 4.0 points)

When using synthetic division on (4x3 - 2x2 + 5x + 7) divided by (x + 2), which is the top line representing the dividend?

4 3 -2 5 7

4 2 5 7

4 -2 5 7

4 3 2 2 5 7

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Question 13 (Multiple Choice Worth 4.0 points)

Factor: 8x2 + 2xy - 21y2.

(4x - 7y)(2x + 3y)

(4x + 7y)(2x - 3y)

(8x - 7y)(x + 3y)

(8x + 7y)(x - 3y)

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Question 14 (Multiple Choice Worth 4.0 points)

What is one factor of a3b3 - 27?

ab + 9

ab - 9

a2b2 + 3ab + 9

a2b2 - 3ab - 9

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Question 15 (Multiple Choice Worth 4.0 points)

Multiply: -3xy2(4x2 - xy + 2y2).

x3y2 + 4x2y - 6xy4

x3y2 - 4xy2 - 6x

-12x2y2 + 3x2y2 - 6x

-12x3y2 + 3x2y3 - 6xy4

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Question 16 (Multiple Choice Worth 4.0 points)

Divide: (3x3 - 16x2 - 10x -12) (x - 6)

3x2 - 2

3x2 + 2

3x2 + 2x + 2

3x2 - 2x - 2

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Question 17 (Multiple Choice Worth 4.0 points)

Expand: (1 - 3x)2.

1 + 9x2

2 - 6x2

1 - 6x + 9x2

1 - 12x + 9x2

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Question 18 (Multiple Choice Worth 4.0 points)

Factor: x2 + 18xy + 56y2.

(x + y)(x + 56y)

(x + 2y)(x + 28y)

(x + 4y)(x + 14y)

(x + 7y)(x + 8y)

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Question 19 (Multiple Choice Worth 4.0 points)

Factor: 4x2 + 20x + 25.

(4x +