Question

Calcule as expressões:
A) (3+1).(3-i)
B) 4.(5-2i)+(7+3i)
C) 3+(-4-i).(1+4i)

Answer 1

A) 3.3 + 3.i + 1.3 + 1.i
9+3i+3+1i
12+4i
B)4.5-4.2i+7+3i
20-8i+7+3i
27-5i
C) 3.-4-3.i.1+4i
-12-3i.(1+4i)
-12-3i-12i
-12-15i