1 . x+y=3,x2+y2=5

• A. $34$
• B. $9$
• C. $45$
• D. $54$

Answer: Option B

Explanation:

2 . x+y=2,x2+y2=4,x3+y3=?

• A. 8
• B. 9
• C. 16
• D. 25

Answer: Option A

Explanation:

3 . x+y=2,x2+y2=4 হলে

• A. $4$
• B. $8$
• C. $12$
• D. $16$

Answer: Option B

Explanation:

4 . x+y=2

• A. $2$
• B. $14$
• C. $8$
• D. $1$

Answer: Option C

Explanation:

5 . x+y=3

• A. $-12$
• B. $-48$
• C. $42$
• D. $21$

Answer: Option D

Explanation:

6 . x+y=5, xy=6

• A. 30
• B. 35
• C. 215
• D. 230

Answer: Option B

Explanation:

7 . u=x3+y3+z3+3xyzxdudx+ydudy+zdudz=?

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

Answer: Option D

Explanation:

8 . x+y=7

• A. 7
• B. 25
• C. 65
• D. 91

Answer: Option D

Explanation:

9 . x2+y2=4 x3+y3

• A. 4
• B. 8
• C. 12
• D. 16

Answer: Option B

Explanation:

10 . x3+y32

• A. 16
• B. 4
• C. 8
• D. 10

Answer: Option A

Explanation:

11 . 1x13x3+y3+z3

• A. 3xyz
• B. -3xyz
• C. -xyz
• D. xyz

Answer: Option D

Explanation:

12 . x+y=3

• A. -12
• B. -48
• C. 42
• D. 21

Answer: Option D

Explanation: