Respuesta :

Answer: -13i + 16

We are given: 10 + 6i - 15i + 6 - 4i

Firstly, we need to collect the like terms

= 10 + 6 + 6i - 15i - 4i

= 16 - 9i -4i

= 16 - 13i

= -13i + 16