Bonjours Factorisez au mieux les expression suivantes: x=multiplier X=inconnue
A=3a-18=3 x...-3x...=....
B=-2X-16=-2x... + -2 x....=.....
C= 10-15a =5x...-5x.....=5(....-3....)
D= 9X²-5X =....xX....-....xX=
E= 21X - 49X²=...3-....x7X ....(......)
F= b² -2b= .....x b -....xb=...(.....)
A=3a-18=3 x...-3x...=....
B=-2X-16=-2x... + -2 x....=.....
C= 10-15a =5x...-5x.....=5(....-3....)
D= 9X²-5X =....xX....-....xX=
E= 21X - 49X²=...3-....x7X ....(......)
F= b² -2b= .....x b -....xb=...(.....)
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