Sagot :
bonsoir
A = 2 x 9 + 4 x 5 = 18 + 20 = 38
b = 2 x 3 + 16 x 5 = 6 + 80 = 86
C = 36 + 20 = 56
D = 100 x 5 = 500
A=2×3^2+4×5
=2×9+20
=18+20
=38
B=2×3+4^2×5
=6+16×5
=6+80
=86
C=(2×3)^2+4×5
=6^2+20
=36+20
=56
D=(2×3+4)^2×5
=(6+4)^2×5
=10^2×5
=100×5
=500