Bonsoir ou Re
A = √8 ( 3 √2 - 5 ) + ( 1 + √2 ) ( 1 - √2)
= 3 √16 - 5 √8 + 1 - 2
= 12 - 5 √8 - 1
= 11 - 5 √8
B = ( √50 - 1 )² - ( √2 - 5 ) ( 4 - √2)
= 50 - 2 √50 + 1 - 4 √2 - √4 - 20 + 5 √2
= 50 - 10 √2 + 1 - 4 √2 - 2 - 20 + 5 √2
= 29 - 9 √2
