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Sagot :

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( 3 x + 2 ) ( 4 x - 2 ) + ( 4 x - 2 ) ( x - 6 )  = 0

( 4 x - 2 ) ( 3 x + 2 + x - 6 ) = 0

( 4 x - 2 ) ( 4 x - 4 ) = 0

soit  4 x - 2 = 0  ⇔ x = 2/4 = 1/2

soit  4 x - 4 = 0  ⇔  x =  4/4 = 1  

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