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Sagot :

VINS

bonjour

( 3 x + 2 )² + ( 5 x + 1 ) ( x - 2 )

=  9 x² + 12 x + 4 + 5 x² - 10 x + x - 2

= 14 x² + 3 x + 2

Réponse :

Bonjour,

(3x+2)² + (5x+1)(x-2)

= 9x² + 12x + 4 + 5x² -10x + x - 2

= 4x² + 3x + 2

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