• A. 9
• B. 11
• C. 12
• D. 16

Answer: Option D

Explanation:

• A. $\left(\sqrt{2x}+5\right)\left(2x^2-5\sqrt{2x}-25\right)$
• B. $\left(\sqrt{2x}+5\right)\left(2x-5\sqrt{2x}+25\right)$
• C. $\left(\sqrt{2x}+5\right)\left(2x^2+5\sqrt{2x}+25\right)$
• D. $\left(\sqrt{2x}-5\right)\left(2x^2-5\sqrt{2x}-25\right)$

Answer: Option B

Explanation:

• A. ২৭০
• B. ৩৬০
• C. ১৮০
• D. ১২০

Answer: Option A

Explanation:

• A. ২৮৭০
• B. ১৫৪০
• C. ৪৪১০০
• D. কোনোটিই নয়

Answer: Option A

Explanation:

• A. ১৫
• B. ১০
• C. ৭
• D. ৫

Answer: Option C

Explanation:

• A. ৪৮
• B. ৫৮
• C. ৪২
• D. ৪৬

Answer: Option C

Explanation:

• A. $2a^2-a+2$
• B. $2a^2-a-2$
• C. $a-2$
• D. $a^2-2$

Answer: Option A

Explanation:

• A. 25
• B. 70
• C. 45
• D. 55

Answer: Option B

Explanation:

• A. ৪ সে.মি.
• B. ৮ সে.মি.
• C. ১৬ সে.মি.
• D. ৩২ সে.মি.

Answer: Option C

Explanation:

• A. $b^2-4ac=0$
• B. $b^2-4ac>0$
• C. $b^2-4ac<0$
• D. $b^2-4ac\#0$

Answer: Option A

Explanation:

• A. 85 °
• B. 65 °
• C. 183 °
• D. 75 °

Answer: Option B

Explanation:

• A. 4
• B. 6
• C. 8
• D. 10

Answer: Option C

Explanation:

• A. 60°
• B. 80°
• C. 90°
• D. 100°

Answer: Option B

Explanation:

• A. $x^2-x+1$
• B. $x^2+x-1$
• C. $x^3-1$
• D. $x^2-x-1$

Answer: Option B

Explanation:

• A. (1,5)
• B. (5, 1)
• C. (0, 4)
• D. (4,5)

Answer: Option A

Explanation: