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Sagot :

VINS

bonsoir

A = ( x - 5 )² + ( 4 x - 1 ) ( 2 x - 10 )

A =  2 ( x - 5 )² + ( 4 x - 1 ) ( x - 5 )

A = ( x - 5 ) (  2 x - 10 + 4 x - 1 )

A = ( x - 5 ) ( 6 x - 11 )

tu remplaces x par  9/7  

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