• A. 3
• B. 3.5
• C. 4
• D. 4.5

Answer: Option B

Explanation:

• A. $\left(x-6\right)\left(x+4\right)$
• B. $\left(x-7\right)\left(x+4\right)$
• C. $\left(x-3\right)\left(x+7\right)$
• D. $\left(x+8\right)\left(x+2\right)$

Answer: Option B

Explanation:

• A. $6$
• B. $4$
• C. $3$
• D. $2$

Answer: Option D

Explanation:

• A. $e^{4x}$
• B. $e^{-x}$
• C. $e^x$
• D. $e^{-4x}$

Answer: Option C

Explanation:

• A. $2$
• B. $3$
• C. $9$
• D. $27$

Answer: Option B

Explanation:

• A. $4$
• B. $7$
• C. $1$
• D. $6$

Answer: Option C

Explanation:

• A. x = 0
• B. y = 0
• C. x = cy
• D. xy = 0

Answer: Option C

Explanation:

• A. $8$
• B. $12$
• C. $30$
• D. $20$

Answer: Option D

Explanation:

• A. $1$
• B. $-2$
• C. $3$
• D. $4$

Answer: Option B

Explanation:

• A. 4
• B. 6
• C. 8
• D. 36

Answer: Option D

Explanation:

• A. 9
• B. 8
• C. 10
• D. 11

Answer: Option C

Explanation:

• A. 28
• B. 36
• C. 54
• D. 18

Answer: Option C

Explanation:

• A. x + 3
• B. x - 1
• C. x - 3
• D. x + 2

Answer: Option C

Explanation:

• A. 74
• B. 56
• C. 37
• D. 26

Answer: Option C

Explanation:

• A. $\frac{3}{2}$
• B. $\frac{2}{3}$
• C. $\frac{5}{2}$
• D. $\frac{2}{5}$

Answer: Option A

Explanation: