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Sagot :

Bonjour,

Factoriser :

(2x + 1)(x + 3) + (3 - 2x)(x + 3)= (x+3)(2x+1+3-2x)= (x+3)(4)<=> 4(x+3)

VINS

bonjour,

[tex]( 2 x + 1 ) ( x + 3 ) + ( 3 - 2 x ) ( x + 3 ) \\= ( x + 3 ) ( 2 x + 1 + 3 - 2 x ) \\= ( x + 3) ( 4 ) \\\\[/tex]

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