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Sagot :

Bonjour,

Factoriser :

= 36(3x-2)²-25(2-x)²

= (6(3x-2)-5(2-x))(6(3x-2)+5(2-x))

= (18x-12-5(2-x))(6(3x-2)+5(2-x))

= (18x-12-10+5x)(6(3x-2)+5(2-x))

= (18x-12-10+5x)(18x-12+5(2-x))

= (18x-12-10+5x)(18x-12+10-5x)

= (23x-22)(13x-2)

Bonne journée.

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