Bonsoir,
a)
2x+4 +4x -1
= 6x +3
b)
-3x +1 -2x +7
= -5x +8
c)
-15 +12x
d)
-20x² +16x +10x -8
= -20x² +26x -8
e)
IR
16x² -32x +16
A=
3x² +9 +x² -x +2x -2
= 4x² +x +7
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Bonsoir,
a)
2x+4 +4x -1
= 6x +3
b)
-3x +1 -2x +7
= -5x +8
c)
-15 +12x
d)
-20x² +16x +10x -8
= -20x² +26x -8
e)
IR
16x² -32x +16
A=
3x² +9 +x² -x +2x -2
= 4x² +x +7