• A. $10$
• B. $1$
• C. $4$
• D. $6$

Answer: Option B

Explanation:

• A. $x^3$
• B. $x^2$
• C. $xy$
• D. $y^2$

Answer: Option B

Explanation:

• A. {a, b}
• B. {a, -b}
• C. {-a, b}
• D. {-a, -b}

Answer: Option A

Explanation:

• A. a,b
• B. a
• C. b
• D. ab

Answer: Option A

Explanation:

• A. $\left\{p,q\right\}$
• B. $\left\{p,-q\right\}$
• C. $\left\{-p,-q\right\}$
• D. $\left\{-p,+q\right\}$

Answer: Option A

Explanation:

• A. -2
• B. -9
• C. 9
• D. 10

Answer: Option C

Explanation:

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

Answer: Option C

Explanation:

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

Answer: Option A

Explanation:

• A. (x+6) (x-7)
• B. (x-6) (x-7)
• C. (x-6) (x+7)
• D. (x+6)(x+7)

Answer: Option A

Explanation:

• A. (x - 2)(x + 3)
• B. (x + 2)(x - 3)
• C. (x + 1)(x + 6)
• D. (x - 1)(x + 6)

Answer: Option B

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. $(x+4y)(x-5y)$
• D. $(x+4y)(x-4y)$

Answer: Option B

Explanation: