• A. $2$
• B. $3$
• C. $-3$
• D. 2 বা -3

Answer: Option A

Explanation:

• A. 7-x
• B. 5-x
• C. 5+x
• D. 12-x

Answer: Option B

Explanation:

• A. $(x-1) (x+6)$
• B. $(x-1) (x+4)$
• C. $(x-1) (x-6)$
• D. $(x+1) (x+6)$

Answer: Option C

Explanation:

• A. x+10
• B. x-10
• C. X-8
• D. x-6

Answer: Option B

Explanation:

• A. $2a^2-5ab-8b^2$
• B. $2a^2-5ab+8b^2$
• C. $2a^2+5ab+8b^2$
• D. কোনোটিই নয়

Answer: Option C

Explanation: