Réponse :

Explications étape par étape

Exercice3

Q1  

a) 2^3 x 6^3 = 2^3 x (2x3)^3 = 2^3 x 2^3 x 3^3 = 2^6 3^3

b) 10^7 10^2 (10^-3)^3 = 10^7 10^2 10^-9 = 10^(7+2-9) = 10^0 = 1

c) 3^2 / 6^3 x (9/6) = ( 3^2 x 3^2) / ( 6^3 x 6) = 3^4 / 6^4  = 1 / 2^4 = 2^(-4)

Q2

a) 4^4 + 4^2 3^2 = 4^2 5^2 = 20^2

b) 20^2 - 3 x 10^2 = 10^2