• A. 25
• B. 25
• C. 30
• D. 35

Answer: Option B

Explanation:

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

Answer: Option B

Explanation:

• A. $\left(x-2\right)$
• B. $x+4$
• C. ${\left(x+2\right)}^2$
• D. $2{\left(x+2\right)}^{}$

Answer: Option D

Explanation:

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

Answer: Option C

Explanation:

• A. $\left(x-1\right)$
• B. $\left(x-2\right)$
• C. $\left(x-3\right)$
• D. $\left(x-4\right)$

Answer: Option C

Explanation:

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

Answer: Option D

Explanation:

• A. x-4
• B. x+3
• C. x-3
• D. x-1

Answer: Option C

Explanation:

• A. a(a-3)
• B. a-3
• C. a
• D. a(a+3)

Answer: Option A

Explanation:

• A. ${\left(x+2\right)}^2\left(x^3-8\right)$
• B. ${\left(x-2\right)}^2\left(x^3-8\right)$
• C. ${\left(x^2-2\right)}^2\left(x^3-8\right)$
• D. ${\left(x^2+2\right)}^2\left(x^3-8\right)$

Answer: Option A

Explanation:

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

Answer: Option C

Explanation:

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

Answer: Option C

Explanation:

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

Answer: Option A

Explanation:

• A. (4x-11)(x-3)
• B. (4x-12)(x-2)
• C. (4x-12)(x-11)
• D. (4x-10)(x-13)

Answer: Option A

Explanation:

• A. (x+1)(3x+4)
• B. (x+3)(x+1)
• C. (x+2)(x-2)
• D. (x+1)(3x-4)

Answer: Option A

Explanation:

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

Answer: Option D

Explanation: