Explications étape par étape:
a) X + Y + Z
= -4 + 6 + (-3)
= -1
b) X × Y × Z
= -4 × 6 × (-3)
= 72
c) X-Y ÷ Z
= -4-6÷ (-3)
= -2
d) X×Y ÷ Z
= -4× 6÷ (-3)
= 8