Question

Áp dụng quy tắc dấu ngoặc:

A= - 418 - {-218-[-118-(-318)+2012]}

Answer 1

A=-418-{-218-[-118-(-318)+2012]}

A=-418+218+118+318+2012

A=2248

Answer 2

 

A= - 418 - {-218-[-118-(-318)+2012]}

A= - 418 - {-218-[-118-(-318)+2012]}

A= - 418 - {-218-[-118+318+2012]}

A= - 418 - {-218+118-318-2012}

A= - 418 + 2018 - 118 + 318 + 2012

A= 1600 - 118 + 218 + 2012

A= 1582 + 218 + 2012

A= 1800 + 2012

A= 3812