SVP URGENT MERCI DAVENCE FACTORISER A : (x-1) ( 2x -2 ) + ( 2x -2 ) + (5-2x) B:(4-3x)(x+5 ) -(4-3x)( x+2)
Mathématiques
Mehdi934
Question
SVP URGENT MERCI DAVENCE FACTORISER A : (x-1) ( 2x -2 ) + ( 2x -2 ) + (5-2x)
B:(4-3x)(x+5 ) -(4-3x)( x+2)
B:(4-3x)(x+5 ) -(4-3x)( x+2)
1 Réponse
-
1. Réponse mohayati2006
A : (x-1) ( 2x -2 ) + ( 2x -2 ) (5-2x)A=(2x-2) (x-1+5-2x)
=2(x-1)(-x+4)
B:(4-3x)(x+5 ) -(4-3x)( x+2)
=(4-3x) (x+5-(x+2))
=(4-3x) (x+5-x-2)
=(4-3x) (3)
=3(4-3x)