Question

18. C) [11^2+(9^2-5*7^3:35):2^3]:5^2


Va rog dau coroană ​

Answer 1

Răspuns:

[11²+(9²-5×7³:35):2³]:5²=

=[121+(81-5×343:35):8]:25

=[121+(81-1715:35):8]:25

=[121+(81-49):8]:25

=(121+32:8):25

=(121+4):25

=125:25

=25