Question

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Esta atividade está nessa foto

Answer 1

Resposta:

Questão 12

a) (+2).(+2)= +4

b) (+3).(+3)= +9

c) (-2).(-2)= +4

d) (-5).(-5)= +25

e) (-3).(-3).(-3)= -27

f) (-1).(-1).(-1).(-1).(-1)= -1

g) (0).(0).(0).(0).(0).(0).(0).(0).(0).(0)= 0

h) (-2).(-2).(-2)= -8

Questão 13

a) (+9)÷3+5=

(+3)+5=

= +8

b) (+144)÷72-3=

(+2)-3=

= -1

Espero ter ajudado!!