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Sagot :

SUGGUS

(4y-1)^2=4

(4y-1)= 2

4y= 3

y=3/4

Salut,

(4y-1)^2 = 4 => 4y -1 = 2 ou 4y - 1 = -2 donc

                            y = 3/4 ou y = - 1/4 

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