Respuesta :

billgkgk

Answer:  25

Step-by-step explanation:  The conjugate has the same numbers with the opposite sign in the middle

(4 -3i)(4 + 3i)

16 -12i  +12i -9i²   substitute (-1) for i²  Middle terms "cancel"

16 +0 -9(-1)

16 +9

25