Réponse:
A=(-2)x(-3)x(+5)
A=2x3x(+5)
A=6x5
A=30
B=(-3)x(-2)x(-4)
B=3x2x(-4)
B=6x(-4)
B=-24
C=(+6)x(-1)x(+3)
C= 6x3x(-1)
C=18-1
C=17
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Réponse:
A=(-2)x(-3)x(+5)
A=2x3x(+5)
A=6x5
A=30
B=(-3)x(-2)x(-4)
B=3x2x(-4)
B=6x(-4)
B=-24
C=(+6)x(-1)x(+3)
C= 6x3x(-1)
C=18-1
C=17