Bonsoir
Effectuer les calculs :
5^2 x (7^2 - 50)
= 25 x (49 - 50)
= 25 x (-1)
5 - (5 x 2 - 4^2)^2
= 5 - (10 - 16)^2
= 5 - (-6)^2
= 5 - 36
(2 - 3)^2 - (2^2 - 3^2)
= (-1)^2 - (4 - 9)
= 1 - (-5)
= 1 + 5
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Bonsoir
Effectuer les calculs :
5^2 x (7^2 - 50)
= 25 x (49 - 50)
= 25 x (-1)
5 - (5 x 2 - 4^2)^2
= 5 - (10 - 16)^2
= 5 - (-6)^2
= 5 - 36
(2 - 3)^2 - (2^2 - 3^2)
= (-1)^2 - (4 - 9)
= 1 - (-5)
= 1 + 5