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factoriser E=(5x-2)^2-(x-7)(5x-2)

Répondre :

Bonjour ,

E = (5x-2)² - (x-7) (5x-2)

E = (5x-2) [ (5x-2) - (x-7) ]

E = (5x-2) [ 5x - 2 - x + 7 ]

E = (5x-2) (4x+5) .