Salut !! Factoriser les expression: A : (-7x-6)(x+5)+(8x-9)(x+5 B: 5(5-2x)(x+1)+5(8x-5)(x+1) C: 6(x+1)(3x-2)-2(2-5x)(x+1) D: 16(x-1)au carré -8(x-1)(x+5)
Mathématiques
doriansiegel
Question
Salut !!
Factoriser les expression:
A : (-7x-6)(x+5)+(8x-9)(x+5
B: 5(5-2x)(x+1)+5(8x-5)(x+1)
C: 6(x+1)(3x-2)-2(2-5x)(x+1)
D: 16(x-1)au carré -8(x-1)(x+5)
Factoriser les expression:
A : (-7x-6)(x+5)+(8x-9)(x+5
B: 5(5-2x)(x+1)+5(8x-5)(x+1)
C: 6(x+1)(3x-2)-2(2-5x)(x+1)
D: 16(x-1)au carré -8(x-1)(x+5)
1 Réponse
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1. Réponse shashawaly
A=(x+5)[(-7x-6)+(8x-9)=(x-5)(-7x-6+8x-9)=(x-5)(-7x+8x-6-9)=(x-5)(x-14)