Examples (cont’d)

• Simplify:WX + XY + X’Z’ + WY’Z’

  WX + XY + X’Z’ + WY’Z’
  
  = WX + XY + X’Z’ + WY’Z’X + WY’Z’X’
  = WX(1 + Y’Z’) + XY + X’Z’(1 + WY’)
  = WX + XY + X’Z’

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