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Sagot :

VINS

bonjour

( 7 x - 2 ) ( 3 x + 5 ) + ( 3 x + 5 )²

= ( 3 x + 5 ) ( 7 x - 2 + 3 x + 5 )

= ( 3 x + 5 ) ( 10 x + 3 )

= 21 x² + 35 x - 6 x - 10 + 9 x² + 30 x + 25

=  30 x² + 59 x + 15  

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