• A. 1
• B. 2
• C. 4

Answer: Option D

Explanation:

• A. $\sqrt{3}+\sqrt{2}$
• B. $3-\sqrt{2}$
• C. $\sqrt{3}-\sqrt{2}$
• D. $\sqrt{3}+2$

Answer: Option C

Explanation:

• A. $30xy$
• B. $45xy$
• C. $60xy$
• D. $7xy$

Answer: Option C

Explanation:

• A. $\frac{5}{2}$
• B. $\frac{1}{2}$
• C. $\frac{125}{2}$
• D. $\frac{25}{\sqrt{5}}$

Answer: Option A

Explanation:

• B. 1
• C. -1
• D. 4

Answer: Option A

Explanation:

• A. $a-b$
• B. $a+b$
• C. $12\left(a^2-b^2\right)$
• D. $2$

Answer: Option D

Explanation:

• A. $14$
• B. $10$
• C. $7\sqrt[3]{2}$
• D. $7\sqrt{2}$

Answer: Option C

Explanation:

• A. $6$
• B. $2\sqrt{6}$
• C. $3\sqrt{3}$
• D. $4\sqrt{6}$

Answer: Option C

Explanation:

• A. $\left(\sqrt{2}x+5\right)\left(2x^2-5\sqrt{2}x-25\right)$
• B. $\left(\sqrt{2}x+5\right)\left(2x^2-5\sqrt{2}x+25\right)$
• C. $\left(\sqrt{2}x+5\right)\left(2x^2+5\sqrt{2}x-25\right)$
• D. $\left(\sqrt{2}x-5\right)\left(2x^2+5\sqrt{2}x+25\right)$

Answer: Option B

Explanation:

• A. 2
• B. 3
• C. 4
• D. 1

Answer: Option B

Explanation:

• A. 2
• B. 3
• C. 4
• D. 1

Answer: Option B

Explanation:

• A. 11
• B. 13
• C. 15
• D. 17

Answer: Option C

Explanation:

• A. $2.3^{2n+1}$
• B. $-{53}^{2n+1}$
• C. $9^{n+2}$
• D. $3^{2n+1}$

Answer: Option D

Explanation:

• A. 9
• B. 441
• C. 1
• D. 21

Answer: Option B

Explanation:

• A. $I^3$
• B. $2I^3$
• C. A
• D. 2A

Answer: Option B

Explanation: