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Sagot :

bjr

(2 + 1/2)³ - 1/(1 - 3)² =

(4/2  + 1/2)³ - 1/(-2)² =

(5/2)³ - 1/4 =

5³/2³  -  1/4 =

125/8  -  1/4 =

125/8 - 2/8 =

(125 - 2)/ 8 =

123/8

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