Question

giúp mình với 2,25 x 7,43 + 2,57 x 2,25 + 18,5

Answer 1

`2,25xx7,43+2,57xx2,25+18,5`

`=2,25xx(7,43+2,57)+18,5`

`=2,25xx10+18,5`

`=22,5+18,5`

`=41`

Answer 2

2,25x7,43+2,57x2,25+18,5
=2,25x(7,43+2,57)+18,5
=2,25x10+18,5
=22,5+18,5
=41