nazeli57
résolu

a,b et c designent 3 nombres tels que a fois b fois c = -100  A= 7 x a x b x c   B= -a x b x c C= -a x (-b) x c   D= a x 2 x b x (-5)x c   E= a x b x c + 1   F= -3 x a x c x b x a x (-5c) x b   G=a x c x a x b x a x c x b   aider moi svp c est a rendre pour ludni merci d 'avance

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Fabrice

a x b x c = -100

 

A= 7 x a x b x c  

= 7 x (-100)

= - 700

 

B= -a x b x c

= - (-100)

= 100

 

C= -a x (-b) x c  

= + a x b x c

= -100

 

D= a x 2 x b x (-5)x c  

= -10 x a x b x c

= -10 x -100

= 1000

 

E= a x b x c + 1  

= -100 +1

= -99

 

F= -3 x a x c x b x a x (-5c) x b  

= 15 x a x b x c x a x b x c

= 15 x -100 x -100

= 150 000

 

G=a x c x a x b x a x c x b

= a x b x c x a x b x c x a

= -100 x -100 x a

= 10 000a

 

En espérant t'avoir aidé.

a x b x c = -100

 

A= 7 x a x b x c  

= 7 x (-100)

= - 700

 

B= -a x b x c

= - (-100)

= 100

 

C= -a x (-b) x c  

= + a x b x c

= -100

 

D= a x 2 x b x (-5)x c  

= -10 x a x b x c

= -10 x -100

= 1000

 

E= a x b x c + 1  

= -100 +1

= -99

 

F= -3 x a x c x b x a x (-5c) x b  

= 15 x a x b x c x a x b x c

= 15 x -100 x -100

= 150 000

 

G=a x c x a x b x a x c x b

= a x b x c x a x b x c x a

= -100 x -100 x a

= 10 000a 

 

 

 

 

;))

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