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Simplfy
b - [b -(a+b) - {b - (b - a+b)} + 2a]

  • a
  • 2a
  • 4a
  • 0
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b - [b -(a+b) - {b - (b - a+b)} + 2a]

  • a
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  • 4a
  • 0
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  • Vishal 10 years ago

    b-[b-(a+b)-{b-(b-a+b)}+2a]
    =b-[b-a-b-{b-(2b-a)}+2a]
    =b-[-a-{b-2b+a}+2a]
    =b-[-a-{-b+a}+2a]
    =b-[-a+b-a+2a]
    =b-[-2a+b+2a]
    =b-b
    =0

  • arun 10 years ago

    when sq bracket will be open, then +2a will be convert into -2a. am i right?