Bonjour ! Alors voilà :

1 - (-5)² x (-9) ² =

 

2- 3+4² =

 

(3+4)² =

 

3-4² =

 

(3-4)² =

Merci baucoup!

 

 



Sagot :

1-25*81 = 1-2025 = -2024

2-3+16 = 15

(3+4)² = 9+24+16 = 49

3-4² = 3-16 = -13

(3-4)² = 9 - 24+16 = 1