1 . x2-8x-8y+16+y2

• A. $4xy$
• B. $2xy$
• C. $6xy$
• D. $8xy$

Answer: Option B

Explanation:

2 . x2-8x-8y+16+y2

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

Answer: Option D

Explanation:

3 . x2-8x-8y+16+y2

• A. -2xy
• B. 8xy
• C. 6xy
• D. 2xy

Answer: Option D

Explanation: