• A. $3x^2+4y^2=2$
• B. $xy=1$
• C. $x+y=4$
• D. $x^2+y^2=5$

Answer: Option D

Explanation:

• A. $\frac{x^2}{3^2}+\frac{y^2}{4^2}=1$
• B. $\frac{x^2}{3^2}+\frac{y^2}{3^2}=1$
• C. $y^2=4ax$
• D. $\frac{x^2}{a^2}+\frac{y^2}{b^2}=1$

Answer: Option A

Explanation:

• A. $\left(1,0\right)$
• B. $\left(\frac{2}{3},\frac{2}{3}\right)$
• C. $\left(\frac{1}{2},\frac{1}{2}\right)$
• D. $\left(\frac{1}{4},\frac{1}{4}\right)$

Answer: Option C

Explanation:

• A. $\frac{1}{2}$
• B. $3\frac{1}{2}$
• C. $4$
• D. $4\frac{1}{2}$

Answer: Option D

Explanation:

• A. $n^2-1$
• B. $n^2$
• C. $n^2+1$
• D. $n^2+2$

Answer: Option B

Explanation:

• A. x
• B. 2x
• C. x 2
• D. 2x+1

Answer: Option C

Explanation:

• A. -9ayz
• B. 9ayz
• C. -9a y 2 z
• D. 9 a 2 y z 2

Answer: Option D

Explanation:

• A. 3
• B. -3
• D. √3

Answer: Option C

Explanation:

• A. 41
• B. 33
• C. 9
• D. 17

Answer: Option D

Explanation:

• A. 2 a 2 যোগ করলে
• B. 2 a 2 বিয়োগ করলে
• C. a 2 বিয়োগ করলে
• D. 2ab যোগ করলে

Answer: Option C

Explanation:

• A. x = 5, y = 7
• B. x = 2, y = 5
• C. x = 3, y = 7
• D. x = 7, y = 5

Answer: Option D

Explanation:

• A. 9 x
• B. 3 3 x
• C. 3^( x + 1)
• D. 3 ^(x − 2)

Answer: Option C

Explanation:

• A. ± 2
• B. ± √ 6
• C. ± 2 √ 2
• D. ± 3

Answer: Option C

Explanation:

• A. (3x+7)(x+2)
• B. (3x-7)(x+2)
• C. (3x+7)(x-2)
• D. (3x-7)(x-2)

Answer: Option B

Explanation:

• A. (3,2)
• B. (6, 2)
• C. (8, 2)
• D. (4,3)

Answer: Option D

Explanation: