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Sagot :

LAMGHARIKHADIJA07

Bonjour

Réponse :

(2x-3)(5x-2)

= 10x² -4x -15x +6

= 10x² -19x +6

(-x+2)(3x+4)

= -3x² -4x +6x +8

= -3x² +2x +8

IBRAHIM1234

(2x-3)(5x-2)=2x5+2x(-2)+(-3)x5+(-3)x(-2)=10-4-15+6=16-19= -3

(-x+2)(3x+4)=(-x)×3x+(-x)×4+2×3x+2×4=2x-4x+6x+8=4x+8

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