Réponses

2014-05-26T21:27:31+02:00
Tu dois appliquer la règle:
a^n * b^n = ab^n

a/ 4² *  5²= 20²
b/ 2³  * 3³ = 6³
c/ 4³ * 5³ = 20³
d/ 5³ * 2³ = 10³
e/ 3³ * 4³ = 12³
f/ 7² * 10²= 70²

2014-05-26T21:30:03+02:00
A) 4²x25 = 4²x5² = (4x5)² = 20²
b) 2³x27 = 2³x3³ = (2x3)³ = 6³
c) 4³x125 = 4³x5³ = (4x5)³ = 20³
d) 5³x8 = 5³x2³ = (5x2)³ = 10³
e) 3³x64 = 3³x4³ = (3x4)³ = 12³
f) 7²x100 = 7²x10² = (7x10)² = 70²