• A. 9
• B. -9
• C. 5
• D. -5

Answer: Option B

Explanation:

• A. 5
• B. 3
• C. -2
• D. -3

Answer: Option B

Explanation:

• A. 2xy
• B. $2y^2$
• C. 1
• D. -1

Answer: Option C

Explanation:

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

Answer: Option B

Explanation:

• A. $60a^4{b}^2{c}^4$
• B. $27a^4{b}^2{c}^4$
• C. $15a^3{b}^2{c}^3$
• D. $3a^3 bc³$

Answer: Option D

Explanation:

• A. ২৯
• B. ৪৬
• C. ৫৭
• D. ৯২

Answer: Option C

Explanation:

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

Answer: Option B

Explanation:

• A. ১০
• B. ৩
• C. ১২

Answer: Option B

Explanation:

• A. 12
• B. 10
• C. 6
• D. 5

Answer: Option A

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

Answer: Option A

Explanation:

• A. $x+3$
• B. $x+4$
• C. $x-3$
• D. $x+6$

Answer: Option A

Explanation:

• A. $\frac{1}{2}<x<1$
• B. x<1/2 এবং x>1
• C. x<1 এবং x>1/2
• D. x=1

Answer: Option B

Explanation:

• A. (1-x)(1-7x)
• B. (1-x)(1+7x)
• C. (1+x)(1-7x)
• D. (1+x)(1+7x)

Answer: Option B

Explanation:

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

Answer: Option A

Explanation: