Réponse:
A= 15–5×(4–6)
A= 15–5×(‐2)
A= 15–(-10)
A= 25
B= (-9)+7×(-3)–4×[-7+(-3)]
B= (-9)+7×(-3)–4×(-10)
B= (-9)+7×(-3)–(-40)
B= (-2)×36
B= 34
C= -6+2×[-2×(7–9)–11]
C= -6+2×[-2×2–11]
C= -6+2×[-4–11]
C= -6+2×7
C= -6+14
C= 8
D= 16+6×(-2)–2
——————
8×4+6×(-5)
D= 16+(-12)–2
32+(-30)
D= 4-2
2
D= 2
2
D= 1