• A. 11
• B. 13
• C. 7
• D. 9

Answer: Option C

Explanation:

• A. $x+1$
• B. $x-1$
• C. $\left(x+1\right)\left(x-1\right)\left(x^2-x+1\right)$
• D. $x\left(x-1\right)$

Answer: Option A

Explanation:

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

Answer: Option D

Explanation:

• A. 14
• B. 16
• C. 11
• D. 12

Answer: Option C

Explanation:

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

Answer: Option C

Explanation:

• A. $6:8$
• B. $8:3$
• C. $5:6$
• D. $3:8$

Answer: Option B

Explanation:

• A. $\sqrt{2}$
• B. $2\sqrt{2}$
• C. $\sqrt[3]{2}$
• D. $2$

Answer: Option D

Explanation:

• A. $-30.0$
• B. $-60.0$
• C. $-10.0$
• D. $30.0$

Answer: Option B

Explanation:

• A. 12xy
• B. 24xy
• C. 2xy
• D. 6xy

Answer: Option A

Explanation:

• A. $11$
• B. $10$
• C. $9$
• D. $7$

Answer: Option A

Explanation:

• A. $2$
• B. $1$
• C. $0$
• D. $-1$

Answer: Option C

Explanation:

• A. 6
• B. 5
• C. 4
• D. 3

Answer: Option C

Explanation:

• A. $0$
• B. $1$
• C. $xyz$
• D. $\sqrt{xyz}$

Answer: Option B

Explanation:

• A. $\pm 10$
• B. $10$
• C. $\pm 11$
• D. $11$

Answer: Option A

Explanation:

• A. $5$
• B. $8$
• C. $10$
• D. $11$

Answer: Option D

Explanation: