Questions on picture. Please help

Answer:
A) 2
Step-by-step explanation:
We already know that [tex]i[/tex] equals -1, so we can substitute that into the expression.
[tex](\sqrt{3} +(-1))(\sqrt{3} -(-1))\\(\sqrt{3} -1)(\sqrt{3}+1)[/tex]
Now we can use the distributive property to solve the rest
[tex](\sqrt{3} -1)(\sqrt{3}+1)\\\sqrt{3} *\sqrt{3} +\sqrt{3} -\sqrt{3}-1\\ 3+0-1\\=2[/tex]
Hope this helps! I apologize if I get this incorrect.