Question

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Answer 1

Explicación paso a paso:

-A

-(-2)=+2

-(-3)=+3

-(+7)=-7

-(-1)=+1

-(-2)=+2

-B

-(+3)=-3

-(+5)=-5

-(0)=0

-(-4)+4

-(+4)-4

A.B

(-2)(+3)=-6

(-3)(+5)=-15

(+7)(0)=0

(-1)(-4)=+4

(+4)(+4)=+16

A.(-B)

(-2)(-(+3))=+6

(-3)(-(+5))=+15

(+7)(-(0))=0

(-1)(-(-4))=-4

(+4)(-(+4))=-16

-A.(-B)

-(-2)(-(+3))=-6

-(-3)(-(+5))=-15

-(+7)(-(0))=0

-(-1)(-(-4))=4

-(+4)(-(+4))=+16