Réponses

2014-04-14T20:55:47+02:00
Bonsoir

a) x² = 8 
x = √8 = 2√2

b) x² = 20
x = √20  =2√5

c) x² = 50
x = √50  = 5√2

d) x² = 75

x = √75 = 5√3