Factoriser les expressions suivantes :
A= (4x−8)(−6x+8)−(4x−8)(−4x+3)
B= (5x−9)(8x−6)−6(5x−9)
C= (−8x−8)^2 +(−8x−8)(2x−4)
A= (4x−8)(−6x+8)−(4x−8)(−4x+3)
B= (5x−9)(8x−6)−6(5x−9)
C= (−8x−8)^2 +(−8x−8)(2x−4)
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Bonjour,
A= (4x−8)(−6x+8)−(4x−8)(−4x+3)
(4x-8) (-6x+8 +4x-3)
= (4x-8) ( -2x +5)
B= (5x−9)(8x−6)−6(5x−9)
(5x-9) ( 8x-6 -6)
= (5x-9) ( 8x-12)
C= (−8x−8)² +(−8x−8)(2x−4)
= (−8x−8)( -8x-8) +(−8x−8)(2x−4)
= ( -8x-8) ( -8x-8 +2x -4)
= ( -8x-8) ( -6x -12)