Expand (sqrt(a) +/- sqrt(b))^2 = a + b +/- 2 sqrt(ab)

1. A.
   $(\sqrt{7} + \sqrt{3})^2 - 2\sqrt{21}$
2. B.
   $(\sqrt{5} + \sqrt{5})^2$
3. C.
   $(\sqrt{2} + \sqrt{3})^2 + 2\sqrt{6}$
4. D.
   $(\sqrt{11} + \sqrt{5})^2 - 2\sqrt{55}$

Tap an option to check your answer.

1. A.
   $14$
2. B.
   $15$
3. C.
   $16$
4. D.
   $17$

Tap an option to check your answer.

1. A.
   $7$
2. B.
   $6$
3. C.
   $5$
4. D.
   $4$

Tap an option to check your answer.

1. A.
   $4\sqrt{77}$
2. B.
   $2\sqrt{77}$
3. C.
   $6\sqrt{77}$
4. D.
   $8\sqrt{77}$

Tap an option to check your answer.

1. A.
   $1 + 2\sqrt{2}$
2. B.
   $3 + 2\sqrt{2}$
3. C.
   $2 + \sqrt{2}$
4. D.
   $1 + \sqrt{2}$

Tap an option to check your answer.

1. A.
   $7$
2. B.
   $6$
3. C.
   $5$
4. D.
   $4$

Tap an option to check your answer.