Question

Giúp tui

Answer 1

Answer 2

có mùi bài thi nên ko giúp

Answer 3

bn hỏi nhìu vậy

Answer 4

a: =345x51-45x20x4

=13995

b: =36x51+726589x20

=14533616

Answer 5

a, Thay m=51; n=20  ta có:

\(345m-45n\times4=345\times51-45\times20\times4=17595-3600=13995\)

b, Thay m=51; n=20  ta có:

\(36m+726589n=36\text{ }\times51+726589\times20=1836+14531780=14533616\)