Question

Me ajudem
Efetue ( -2i + 5)( -3 + 2i)

Answer 1

(-2i + 5)(-3 + 2i)

Aplicando a distributiva temos:

(-2i).(-3) + (-2i).2i + 5.(-3) + 5.(2i)
6i - 4$i^2$-15+10i

$i^2$=-1

6i - 4.(-1) - 15 + 10i
6i + 4 - 15 + 10
16i - 11