• A. $4$
• B. $3$
• C. $2$
• D. $0$

Answer: Option A

Explanation:

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

Answer: Option A

Explanation:

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

Answer: Option D

Explanation:

• A. $-\frac{1}{2}$
• B. $\frac{1}{2}$
• C. $\frac{1}{3}$
• D. $\frac{2}{3}$

Answer: Option A

Explanation:

• B. 1
• C. 2
• D. 3

Answer: Option A

Explanation:

• A. 52
• B. 46
• C. 26
• D. 22

Answer: Option C

Explanation:

• A. $a+b+c$
• B. $\frac{a+b-c}{a-b+c}$
• C. $\frac{a-b+c}{a+b-c}$
• D. $\frac{a+b-c}{a+b+c}$

Answer: Option B

Explanation:

• A. $\left(1,3\right)$
• B. $\left(1,5\right)$
• C. $\left(-3,3\right)$
• D. $\left(-1,1\right)$

Answer: Option D

Explanation:

• A. $\sqrt{48}$
• B. $0$
• C. $\sqrt{6}$
• D. $\sqrt{24}$

Answer: Option D

Explanation:

• A. $f\left(1\right)=1$
• B. $f\left(0\right)=1$
• C. $f\left(-1\right)=1$
• D. $f\left(1\right)=3$

Answer: Option D

Explanation:

• A. ১২
• B. ৯
• C. ৭
• D. ৬

Answer: Option A

Explanation:

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

Answer: Option C

Explanation:

• A. $\sqrt{3}-2$
• B. $1$
• C. $5$
• D. $7$

Answer: Option B

Explanation:

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

Answer: Option A

Explanation:

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

Answer: Option A

Explanation: