Question

21.{350:[274- 2 mũ 3( 35-28:4)]}

Answer 1

21.{350 : [274 - 2³(35 - 28 : 4)]}
= 21.{350 : [274 - 8(35 - 7)]}
= 21.{350 : [274 - 8.28]}
= 21.{350 : [274 - 224]}
= 21.{350 : 50}
= 21.7
= 147

Answer 2

21.{350:[274-2³.(35-28:4)

=21.{350:[274-8.28]

=21.{350:[274-224]

=21.{350:50}

=21.7=147