Question

How do you simplify `(2 + sqrt(-5))(3 + sqrt(-7))`?

Answer 1

`(6 - sqrt 35) + i(2 sqrt 7 + 3 sqrt 5)`

Explanation:

`(2 + i sqrt 5)(3 + i sqrt 7) = 6 + 2i sqrt 7 + 3i sqrt 5 - sqrt 35`