Réponse :
26. A = 6+11²x3
= 6+121x3
=6+363
=369
B = 3x(-2)^3+16
= -24+16
= -8
C= 10+5²x(-3)^3
= 10+25x(-27)
= 10-675
= -665
D= (-2)^6-7(-1)^10-15
= 64-7x1-15
= 64-7-15
=57-15
= 42
27.
A=2x^2-5x^3
a. A = 2x1²-5x1^3
= 2-5
= -3
b. A = 2x(-1)²-5x(-1)^3
= 2-(-5)
= 2+5
= 7
c. A= 2x0²-5x0^3
= 0-0
= 0
d. A = 2x(-3)²-5x(-3)^3
= 18 - (-135)
= 18+135
= 153