• A. 12
• B. 19
• C. 16
• D. 14

Answer: Option D

Explanation:

• A. $-60$
• B. $-30$
• C. $30$
• D. $60$

Answer: Option B

Explanation:

• A. $x^2{y}^2$
• B. xy
• C. ${\left(x^2+y^2\right)}^2$
• D. $9x^2{y}^2$

Answer: Option D

Explanation:

• A. $\left(7,4\right)$
• B. $\left(9,6\right)$
• C. $\left(10,7\right)$
• D. $\left(11,8\right)$

Answer: Option D

Explanation:

• A. 4
• B. 6
• C. 8
• D. 12

Answer: Option B

Explanation:

• A. 6
• B. 7
• C. 8
• D. 9

Answer: Option B

Explanation:

• A. 6
• B. 7
• C. 8
• D. 10

Answer: Option C

Explanation:

• A. 4
• B. 8
• C. 12
• D. 16

Answer: Option B

Explanation:

• A. (x +1)
• B. (x +2)
• C. (x-3)
• D. (x-1)

Answer: Option A

Explanation:

• A. 2,3
• B. 2,-3
• C. -2,3
• D. -2,-3

Answer: Option C

Explanation:

• A. 3,2
• B. 3,-2
• C. -3,2
• D. -3,-2

Answer: Option B

Explanation:

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

Answer: Option B

Explanation:

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

Answer: Option B

Explanation:

• A. $\left(x-y\right)\left(x+11y\right)$
• B. $\left(x-11y\right)\left(x+y\right)$
• C. $\left(x+4y\right)\left(x-5y\right)$
• D. $\left(x+4y\right)\left(x-4y\right)$

Answer: Option B

Explanation:

• A. $x-5$
• B. $x-6$
• C. $x^2+x+3$
• D. $x^2-x-3$

Answer: Option A

Explanation: