• A. a-b+c
• B. a+b-c
• C. b+c-a
• D. a+b+c

Answer: Option D

Explanation:

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

Answer: Option A

Explanation:

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

Answer: Option B

Explanation:

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

Answer: Option A

Explanation:

• A. $\left(x+y\right)\left(x-y\right)\left(x^2+xy+y^2\right)\left(x^2-xy+y^2\right)$
• B. $\left(x^3+y^3\right)\left(x^3-y^3\right)$
• C. $\left(x+y\right)\left(x-y\right)\left(x^2+2xy\right)\left(x^2-xy+y^2\right)$
• D. $\left(x^2+y^2\right)\left(x^2+xy+y^2\right)\left(x^2-xy+y^2\right)$

Answer: Option A

Explanation:

• A. (a+b+c)(a-b+c)
• B. (a-b-c)(a-b+c)
• C. (a-b-c)(a+b-c)
• D. (a+b+c)(a-b-c)

Answer: Option B

Explanation:

• A. $9\left(a-b\right)\left(b-c\right)\left(c-a\right)$
• B. $3\left(a-b\right)\left(b-c\right)\left(c-a\right)$
• C. $2\left(a-b\right)\left(b-c\right)\left(c-a\right)$
• D. $\left(a-b\right)\left(b-c\right)\left(c-a\right)$

Answer: Option B

Explanation:

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

Answer: Option C

Explanation:

• A. (6-a)(4a+1)
• B. (a-6)(4a+1)
• C. (a-6)(4a-1)
• D. (6-a)(4a-1)

Answer: Option A

Explanation:

• A. (7p-8) (p+1)
• B. (7p+8)(p+1)
• C. (7p-8)(p-1)
• D. None

Answer: Option A

Explanation:

• A. $\left(2x+7\right)\left(x-1\right)$
• B. $\left(x-1\right)\left(2x-7\right)$
• C. $\left(2x-1\right)\left(x+7\right)$
• D. $\left(2x-7\right)\left(x+1\right)$

Answer: Option D

Explanation:

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

Answer: Option D

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

Answer: Option A

Explanation:

• A. (3x+4)(3x+10 )
• B. (3x+4)(3x-10)
• C. (3x-4)(3x+10)
• D. (3x-4)(3x-10)

Answer: Option C

Explanation: