Réponse :
Explications étape par étape
Bonjour
Calculer :
(3 x 5)^2 = 15^2 = 225
3^2 x 5 = 9 x 5 = 45
(2 x 4)^3 = 8^3 = 512
2^3 x 4 = 8 x 4 = 32
3 x 5^2 = 3 x 25 = 75
3^2 x 5^2 = 9 x 25 = 225
2 x 4^3 = 2 x 64 = 128
2^3 x 4^3 = 8 x 64 = 512
Calculer :
5^2 - 7 = 25 - 7 = 18
(7^2 - 1) x 10^1 = (49 - 1) x 10 = 48 x 10 = 480
3 x (1/2)^3 = 3 x (1/8) = 3/8
5/2 x (4/5)^2 = 5/2 x 16/25 = 5/25 x 16/2 = 1/5 x 8 = 8/5
2^4 + 10^2 = 16 x 100 = 1600
(6^2 - 1)/(2^3 - 1) = (36 - 1)/(8 - 1) = 35/7 = 5
2/3 x (3/2)^3 = 2/2^3 x 3^3/3 = 1/2^2 x 3^2 = 1/4 x 9 = 9/4
4^7/8^7 = 4^7/(2^7 x 4^7) = 1/2^7 = 1/128
Calculer :
2 x 3^2 + 4 = 2 x 9 + 4 = 18 + 4 = 22
2 x 3 + 4^2 = 6 + 16 = 22
2^2 x 3 + 4 = 4 x 3 + 4 = 12 + 4 = 16
2 x 3^2 + 4 x 5 = 2 x 9 + 20 = 18 + 20 = 38
(2 x 3)^2 + 4 x 5 = 6^2 + 20 = 36 + 20 = 56
2 + 3^2 x 4 = 2 + 9 x 4 = 2 + 36 = 38
2 + 3 x 4^2 = 2 + 3 x 16 = 2 + 48 = 50
2^2 + 3 x 4 = 4 + 12 = 16
2 x 3 + 4^2 x 5 = 6 + 16 x 5 = 6 + 80 = 86
2 x (3 + 4)^2 x 5 = 2 x 7^2 x 5 = 10 x 49 = 490
