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Sagot :

[tex] (2x-3) (x+2)-(-3x-2)(2x-3)\\ =2x^2+4x-3x-6 -(-6x^2+9x-4x+6)\\ [/tex]

 

[tex]=2x^2+4x-3x-6 +6x^2-9x+4x-6\\ =8x^2-4x-12[/tex]

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