Question

efetue as muptiplicacoes

a) (+1) · (+2)=

b) (8+) · (+3)=

c) (+7) · (+7)=

d) (+1) · (-9)=
​

Answer 1

Resposta:

a) +2

b) +24

c) +49

d) -9

Explicação passo-a-passo:

a) (+1).(+2)

+1.+2

+2

b) (+8).(+3)

+8.+3

+24

c) (+7).(+7)

+7.+7

+49

d) (+1).(-9)

+1.-9

-9