• A. (2x² + 2x + 1)(2x² - 2x - 1)
• B. (2x² + 2x - 1)(2x² - 2x - 1)
• C. (2x² + 2x + 1)(2x² - 2x + 1)
• D. (2x² + 2x - 1)(2x² - 2x + 1)

Answer: Option C

Explanation:

• A. 24xyz
• B. 24x2yz
• C. 12x2y2z
• D. 12xy2z

Answer: Option C

Explanation:

• A. 12
• B. 16
• C. 25
• D. 9

Answer: Option D

Explanation:

• A. (x + 2) (4x + 3)
• B. (x + 2) (4x - 3)
• C. (x - 2) (4x + 3)
• D. (x - 2) (4x - 3)

Answer: Option B

Explanation:

• A. -3/2
• B. -2/3
• C. 3/2
• D. 24

Answer: Option C

Explanation:

• A. 6
• B. 5
• C. 4
• D. 3

Answer: Option C

Explanation:

• A. 3
• B. 7
• C. 15
• D. 21

Answer: Option C

Explanation:

• A. একটিও না
• B. মাত্র একটি
• C. দুইটি
• D. অসীম সংখ্যাক

Answer: Option D

Explanation:

• A. 3
• B. 6
• C. -4
• D. - 2

Answer: Option C

Explanation:

• A. 45 ͦ
• B. 0 ͦ
• C. 30 ͦ
• D. 60 ͦ

Answer: Option B

Explanation:

• A. 1
• B. -1
• C. 2
• D. -2

Answer: Option D

Explanation:

• A. ${\left(a+b\right)}^2-{\left(a-b\right)}^2$
• B. ${\left(a-b\right)}^2-{\left(a+b\right)}^2$
• C. $\frac{{\left(a+b\right)}^2}{2}+\frac{{\left(a-b\right)}^2}{2}$
• D. ${\left(\frac{a+b}{2}\right)}^2-{\left(\frac{a-b}{2}\right)}^2$

Answer: Option A

Explanation:

• A. 6ab
• B. 12ab
• C. 18ab
• D. 24ab

Answer: Option B

Explanation:

• A. Πa
• B. Πa2
• C. 2Πa
• D. 2Πa2

Answer: Option A

Explanation:

• A. 12
• B. 13
• C. 14
• D. 15

Answer: Option D

Explanation: