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Sagot :

VINS

Bonsoir

On suppose qu'il faut factoriser

f (x) =  ( 6 x - 1 ) ( 5 x - 3 - 2 x - 7 )

      = ( 6 x - 1 )  ( 3 x - 10 )

f (x) = ( 5 - x ) ( 7 x + 4 + 7 + 3 x )

      = ( 5 - x ) ( 10 x + 11 )

f (x) = x ( 10 x - 7 )

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