Question

Efetue:
(A) (4 - 2i) (1+3i)
(B) (2 - 5i) (3 - 4i)

Answer 1

Resposta:

Explicação passo-a-passo:

(4-2i)(1+3i)=

4+12i-2i-6i²=

4+10i-6.-1=

4+10i+6=

10+10i

(2-5i)(3-4i)=

6-8i-15i+20i²=

6-23i+20.-1=

6-20-23i=

-14-23i