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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

ephtamina890

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