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Sagot :

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bonsoir

c = 4 √125 + √500

C = 4 √ 25 x √5 + √5 x √100

C = 20 √5 + 10 √5 = 30 √ 5

D = 2 √490 + √360

D = 2 √49 x √10 + √36 x √10

D = 14 √10 + 6 √10 = 20 √10

E = 5 √2 + √32 - √72

E = 5 √2 + √16 x √ 2 - √36 x √ 2

E = 5 √2 + 4 √2 - 6 √2 = 3 √2

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