Question

8. Să se calculeze:
b) [(54:32-22)-26-5²]:3²
a) [152-(2048:4+26): 3]: 11 =
c) {[(132+3):2-5]:9+42): (625:25) =
=
W

Answer 1

Explicație pas cu pas:

a)

[15² - (2048:4 + 2⁶) : 3] : 11 =

= [225 - (512 + 64) : 3] : 11

= (225 - 576 : 3) : 11

= (225 - 192) : 11

= 33 : 11

= 3

b) [(54:32-22)-26-5²]:3²

c)

{[(13²+3):2-5]:9+42} : (625:25) =

= {[(169 + 3) : 2 - 5] : 9 + 42} : 25

= [(172:2 - 5) : 9 + 42] : 25

= [(86 - 5) : 9 + 42] : 25

= (81 : 9 + 42) : 25

= (9 + 42) : 25

= 51 : 25