Question

Evaluate (2 minus 5 i) (p + q) (i) when p = 2 and q = 5 i.

Answer 1

`29i`

Explanation:

From this information, we can write the following equation:
`(2-5i)(2 + 5i)(i)`

We can see that there is the factorization of the difference of squares, so we can first expand that. The equation will become the following:
`(4+25)(i)`

=
`29i`

hope this helped! :)