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Sagot :

VINS

bonsoir

A = ( √5 - √ 7 )²

A =  5 - 2 √35 + 7

A = 12 -  2 √35

B = ( 2 √3 + 3 √2 )²

B =  12 + 12 √6  + 18

B = 30 + 12 √ 6

C = ( 3 - √5 )²

C = 9 - 6 √5 + 5

C = 14 - 6 √5

D =  ( 5 √3 + 1 ) ( 5 √3 - 1 )

D =  75 - 1 = 74  

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