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Sagot :

Bonjour,

Factoriser :

= (6x+2)(3x-8)-(6x+2)(-7x-9)

= (6x+2)(3x-8-(-7x-9))

= 2(3x+1)(3x-8-(-7x-9))

= 2(3x+1)(3x-8+7x+9)

= 2(3x+1)(10x-8+9)

= 2(3x+1)(10x+1)

Bonne journée.

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