• A. $a^2$
• B. $2a^2$
• C. $\sqrt{2}{a}^2$
• D. $\sqrt{2}a$

Answer: Option B

Explanation:

• B. 1
• C. 2
• D. 4

Answer: Option A

Explanation:

• A. $1$
• B. $7-4\sqrt{3}$
• C. $2+\sqrt{3}$
• D. $1/2-\sqrt{3}$

Answer: Option B

Explanation:

• A. 4

Answer: Option A

Explanation:

• A. $\left(p+q\right)\left(p-q\right)\left(p^2+pq+q^2\right)\left(p^2-pq+q^2\right)$
• B. $\left(p+q\right)\left(p-q\right)\left(p^2-pq+q^2\right)\left(p^2+q^2\right)$
• C. $\left(p+q\right)\left(p-q\right)\left(p^2-pq+q^2\right)\left(p^2-q^2\right)$
• D. $\left(p^2+q^2\right)\left(p^2-q^2\right)$

Answer: Option A

Explanation:

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

Answer: Option C

Explanation:

• A. $-2$

Answer: Option A

Explanation:

• A. $1$
• B. $\frac{1}{3}$
• C. $3$
• D. $9$

Answer: Option C

Explanation:

• A. $x^1+y^1$
• B. $x^1-y^1$
• C. $0$
• D. $3$

Answer: Option C

Explanation:

• A. $29$
• B. $30$
• C. $31$
• D. $32$

Answer: Option A

Explanation:

• A. 1
• B. 3
• C. 4
• D. 5

Answer: Option A

Explanation:

• A. 2
• B. 5
• C. 6
• D. 8

Answer: Option A

Explanation:

• A. 1.5
• B. 2.5
• C. 3.5
• D. 4.5

Answer: Option B

Explanation:

• A. 3
• B. 8
• C. 9
• D. 10

Answer: Option C

Explanation:

• A. 3
• B. 8
• C. 9
• D. 12

Answer: Option B

Explanation: