Question

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Answer 1

Respuesta:

Explicación paso a paso:

a. (+6)(+7)=+42

b.(-4)(-2)=+8

c.(+8)(+10)=+80

d.(-5)(-9)=+45

e.(+10)(+20)=+200

f.(-5)(-10)=+50

a.(-12)(+6)=-72

b.(+12)(-12)=-144

c.(-9)(+8)=-72

d.(+12)(-10)=-120

e.(-4)(+8)=-32

f.(-10)(+30)=-300

Answer 2

Explicación paso a paso:

1)En la 1:

C)(+8)(+10) +80  

D)(-5)(-9)=+45

E)(+20)(+10)=+200

F)(-5)(-10)=+50

2)En la 2:

C)(-9)(+8)=-72

D)(+12)(-10)=-120

E)(-4)(+8)=-32

F)(-10)(+30)=-300