Question

Help me please:

I-(-5)+[(-2)+(-4)+(+2)]+(-4)
II-(+5)+(-5)+(-3)+[(-2)+(-3)]

Answer 1

Resposta:

|=+5+[-2-4+2]-4

|=+5-4-4

|=-3

||=+5-5-3+[-2-3]

||=-3+[-5]

||=-8