Sagot :
Bonjour
Factoriser :
D=(5x-6)(7-2x)-(5x-6)²
D = (5x - 6) [(7 - 2x) - (5x - 6)]
D = (5x - 6) (7 - 2x - 5x + 6)
D = (5x - 6) (- 7x + 13)
☘ Bonjour ️☺️
Factorisons D :
D = (5x - 6) (7 - 2x) - (5x - 6)²
D = (5x - 6) (7 - 2x) - (5x - 6)(5x - 6)
Le facteur commun est (5x - 6).
D = (5x - 6) [(7 - 2x) - (5x - 6)]
D = (5x - 6) (7 - 2x - 5x + 6)
D = (5x - 6) ( - 7x + 13)☘️