• A. $-1$
• B. $-5$
• C. $-8$
• D. $-3$

Answer: Option B

Explanation:

• A. 128
• B. 7
• C. 9
• D. 2

Answer: Option C

Explanation:

• A. 1
• B. 2
• C. 3
• D. 4

Answer: Option C

Explanation:

• A. log192
• B. log92
• C. log96
• D. log48

Answer: Option C

Explanation:

• A. 1
• B. 2
• C. 3
• D. 4

Answer: Option D

Explanation:

• A. 120
• B. 125
• C. 225
• D. 375

Answer: Option B

Explanation:

• A. 7
• B. 6
• C. 5
• D. 4

Answer: Option B

Explanation:

• A. 32
• B. 8
• C. 3
• D. $\sqrt{8}$

Answer: Option A

Explanation:

• A. 28 loga
• B. 56 loga
• C. 7 loga
• D. 8 loga

Answer: Option A

Explanation:

• A. 6
• B. 5
• C. 4
• D. 3

Answer: Option B

Explanation:

• A. 8
• C. 2
• D. 1

Answer: Option B

Explanation:

• A. $a>0$
• B. $a \mathrm{Not}=1$
• C. $a>0,a \mathrm{Not}=1$
• D. $a \mathrm{Not}=1,a>2$

Answer: Option C

Explanation:

• A. $a+b=1$
• B. $a-b=1$
• C. $a=b$
• D. $a^2-b^2=1$

Answer: Option A

Explanation:

• A. x = 2
• B. x = 3
• C. x = 4
• D. x = 2.5

Answer: Option B

Explanation:

• B. 10
• C. 2√3
• D. 2

Answer: Option B

Explanation: