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What is ( + )-2 + ( - ) equal to ?

Options

  1. A0
  2. B2
  3. C2
  4. D+

Correct answer

A. 0

Step-by-step solution

( + )-2 + ( - ) by applying formula aligned & C+ D=2 ( C+D 2 ) ( C-D 2 ) & =2 -2 & =0 aligned

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