Réponses

2014-01-11T10:23:34+01:00
A=5+(2x+3)
=5+2x+3
=2x+8
=2(x+4)

B=5x-(3-4x)
=5x-3+4x
=9x-3
=3(3x-1)

C=(x-4)-6
=x-4-6
=x-10

D=(4x+2)+(-6x-2)
=4x+2-6x-2
=-2x

E=-(-3x-1)+(x-3)
=3x+1+x-3
=4x-2
=2(2x-1)

F=8x-(5x+2)+(3-4x)
=8x-5x-2+3-4x
=-x+1