Réponse:
a) -3x -6
2x -21
b) 6x(carre) - 16x -9x +16
6xcarre -25x+16
c) 21x + 18xcarre -35-30x -7 -x
-10x + 18xcarre - 42
d) -2 +6x +3xcarre -15x +2x -10
-12 +3xcarre -7x
e) (-10x -5) -(16x +72 -8xcarre - 36x)
-10x -5 -16x -72 +8x carre +36x
10x -77 +8xcarre
f) (3xcarre +12x + 8x +32) - (-7x +35 xcarre +8 -40x)
3xcarre +12x + 8x +32 +7x -35 xcarre -8 +40x
-32xcarre +24+67x
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Réponse:
a) -3x -6
2x -21
b) 6x(carre) - 16x -9x +16
6xcarre -25x+16
c) 21x + 18xcarre -35-30x -7 -x
-10x + 18xcarre - 42
d) -2 +6x +3xcarre -15x +2x -10
-12 +3xcarre -7x
e) (-10x -5) -(16x +72 -8xcarre - 36x)
-10x -5 -16x -72 +8x carre +36x
10x -77 +8xcarre
f) (3xcarre +12x + 8x +32) - (-7x +35 xcarre +8 -40x)
3xcarre +12x + 8x +32 +7x -35 xcarre -8 +40x
-32xcarre +24+67x