• A. $-2xy$
• B. $8xy$
• C. $6xy$
• D. $2xy$

Answer: Option D

Explanation:

• A. $2xy$
• B. $6xy$
• C. $12xy$
• D. $24xy$

Answer: Option C

Explanation:

• A. 40
• B. 60
• C. 50
• D. 80

Answer: Option C

Explanation:

• A. 6
• B. 4
• C. 2
• D. 1

Answer: Option D

Explanation:

• A. 30
• B. 60
• C. 225
• D. 15

Answer: Option C

Explanation:

• A. 12
• B. 14
• C. 16
• D. 18

Answer: Option D

Explanation:

• A. ৩৫৭২৫
• B. ৪২৯২৫
• C. ৪৫৫০০
• D. ৪৭২২৫

Answer: Option B

Explanation:

• A. $x<1,x>4$
• B. $x>1,x>4$
• C. $x<1,x<4$
• D. $1$

Answer: Option A

Explanation:

• A. $196$
• B. $194$
• C. $192$
• D. $198$

Answer: Option B

Explanation:

• A. $-60$
• B. $-30$
• C. $30$
• D. $60$

Answer: Option B

Explanation:

• A. $\left(x^2-y^2\right)$
• B. $\left(x^{2}xy+y^2\right)$
• C. $x^3-y^3$
• D. $x+y$

Answer: Option A

Explanation:

• A. $4$
• B. $3$
• C. $2$
• D. $1$

Answer: Option A

Explanation:

• A. $6$
• B. $4$
• C. $1$
• D. $-1$

Answer: Option D

Explanation:

• A. 800
• B. 1200
• C. 1400
• D. 1000

Answer: Option D

Explanation:

• A. $x-5$
• B. $x-6$
• C. $x^2+x+3$
• D. $x^2-x-3$

Answer: Option A

Explanation: