1 . 18x+y3,24x+y2

• A. $2\left(x+y\right)$
• B. $x-y$
• C. $x+y$
• D. $2\left(x-y\right)$

Answer: Option A

Explanation:

2 . x+y2-x-y2=

• A. $xy$
• B. $2xy$
• C. $3xy$
• D. $4xy$

Answer: Option D

Explanation:

3 . x-y=10,xy=5

• A. 80
• B. 120
• C. 110
• D. 90

Answer: Option B

Explanation:

4 . x+y2

• A. 49
• B. -29
• C. -1
• D. 0

Answer: Option A

Explanation:

5 . x2+y2+b=8,xy=7

• A. ১৪
• B. ১৬
• C. ২২
• D. ৩০

Answer: Option C

Explanation:

6 . x-y=10,xy=5

• A. 80
• B. 120
• C. 110
• D. 90

Answer: Option B

Explanation:

7 . x+y2=164

• A. 6
• B. 9
• C. 4
• D. 12

Answer: Option A

Explanation: