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Sagot :

VINS

bonsoir

( x + 2 ) ( 3 x - 1 ) ( 5 - x )

= ( 3 x² - x + 6 x - 2 ) ( 5 - x )

=  ( 3 x² + 5 x - 2 ) ( 5 - x )

=  15 x² - 3 x ³ + 25 x - 5 x² - 10 + 2 x

= - 3 x ³ + 10 x² + 27 x - 10

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