• A. 1
• B. 2
• C. 3
• D. 4

Answer: Option B

Explanation:

• A. -5
• C. 2
• D. 4

Answer: Option B

Explanation:

• A. $6xy$
• B. $12xy$
• C. $24xy$
• D. $144xy$

Answer: Option C

Explanation:

• A. $x^2+5x+6=0$
• B. $a^2+10a+9=0$
• C. $4x+5=9$
• D. ${\left(p+q\right)}^2=p^2+2pq+q^2$

Answer: Option D

Explanation:

• A. -60
• B. -30
• C. 30
• D. 60

Answer: Option B

Explanation:

• A. $\frac{1}{50}$
• B. $\frac{1}{625}$
• C. $\frac{1}{2}$
• D. $\frac{1}{5}$

Answer: Option D

Explanation:

• A. 4
• B. 8
• C. 12
• D. 16

Answer: Option B

Explanation:

• A. 3
• B. 8
• C. 9
• D. 10

Answer: Option C

Explanation:

• A. 49
• B. -29
• C. -1

Answer: Option A

Explanation:

• A. 5
• B. 10
• C. 15
• D. 20

Answer: Option B

Explanation:

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

Answer: Option B

Explanation:

• A. 1
• B. 8
• C. 9
• D. 16

Answer: Option C

Explanation:

• A. 2
• B. 1
• C. $\frac{1}{2}$
• D. $\frac{1}{4}$

Answer: Option B

Explanation:

• A. 36
• B. 100
• C. 289
• D. 374

Answer: Option A

Explanation:

• A. -2ab
• B. 2bc
• C. 2ca
• D. -2ca

Answer: Option D

Explanation: