• A. $3$
• B. $7$
• C. $5$
• D. $9$

Answer: Option B

Explanation:

• A. $1$
• B. $2^n-1$
• C. $2^n+1$
• D. $3^{n-1}$

Answer: Option C

Explanation:

• A. 12
• B. 13
• C. 14
• D. 15

Answer: Option D

Explanation:

• A. 3
• B. 2
• C. 1 : 2
• D. -1

Answer: Option D

Explanation:

• A. (x+2)(3x-5)
• B. (x+2)(3x-5)
• C. (x-2)(3x-5)
• D. (x-2)(3x+5)

Answer: Option A

Explanation:

• A. (3x -2) (x +6)
• B. (3x -2) ( x-6)
• C. (3x -6) (3x+2)
• D. 3(x-6) (x-2)

Answer: Option C

Explanation:

• A. $\left(3x+2\right)\left(x-3\right)$
• B. $\left(3x-2\right)\left(x+3\right)$
• C. $\left(3x+2\right)\left(x+3\right)$
• D. $\left(3x-2\right)\left(x+3\right)$

Answer: Option A

Explanation:

• A. $\pm 2$
• B. $\pm \sqrt{6}$
• C. $\pm 2\sqrt{2}$
• D. $\pm 3$

Answer: Option C

Explanation:

• A. $2x-5$
• B. $2x+5$
• C. $3x-5$
• D. $3x+5$

Answer: Option C

Explanation:

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

Answer: Option C

Explanation:

• A. $a-b$
• B. $a+b$
• C. $12\left(a^2-b^2\right)$
• D. $2$

Answer: Option D

Explanation:

• A. $\frac{2}{3}$
• B. $\frac{-2}{3}$
• C. $\frac{8}{3}$
• D. $\frac{-8}{3}$

Answer: Option A

Explanation:

• A. $0$
• B. $1$
• C. $2$
• D. $5$

Answer: Option A

Explanation:

• A. $14x^4$
• B. $14x^6$
• C. $14x^2$
• D. $12x^2$

Answer: Option C

Explanation:

• A. $2xy$
• B. $6xy$
• C. $12xy$
• D. $24xy$

Answer: Option C

Explanation: