Bonjour,
a. 2a + 5c
b. ad + 40
c. 38 * (3 + 2c)
= 38 * 3 + 38 * 2c
= 114 + 76c
d. 3z - 0 * h
= 3z
e. 21 - dh
f. 11a - t
g. a * (3 * 9 + b * n)
= a * (27 + bn)
= a * 27 + a * bn
= 27a + abn
Simplifier :
A. 2×a+5×c = 2a+5c
B. a×d+5×8 = ad+40
C. 38(3+2×c) = 114+76c
D. 3×z-0×b = 3z
E. 3×7-d×b = 21-bd
F. a×11-1×t = 11a-t
G. a×(3×9+b×n) = 27a+abn
Bonne journée.
