Question

Simplify:
(√3+√-7)(√3-√-7)

Answer 1

yes

Answer 2

When we have a negative under a radical, it's necessary to pull out an i and make the stuff under the radical positive like this:
\[(\sqrt{3} + \sqrt{-7})(\sqrt{3} - \sqrt{-7})\]
\[(\sqrt{3} + i \sqrt{7})(\sqrt{3} - i \sqrt{7})\]From here, you can solve this by using the FOIL method, are you familiar with this method?

Answer 3

yes, extremely

Answer 4

Ok, so FOIL that out.