Sagot :
A= 3 x 4^2 + 5
= 3 x 16 - 5
= 48 + 5
= 53
B= (3 x 4)^2 + 5
= 12^2 + 5
= 144 + 5
= 149
C= 3 x (4^2 + 5)
= 3 (16 + 5)
= 3 x 21
= 63
D= 3 x (4 + 5)^2
= 3 x 9^2
= 3 x 3^4
= 3^5
= 243
= 3 x 16 - 5
= 48 + 5
= 53
B= (3 x 4)^2 + 5
= 12^2 + 5
= 144 + 5
= 149
C= 3 x (4^2 + 5)
= 3 (16 + 5)
= 3 x 21
= 63
D= 3 x (4 + 5)^2
= 3 x 9^2
= 3 x 3^4
= 3^5
= 243