Question 399971
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Hi
(2/3x^2-1/2x-2/3)+(1/2x^2+1/4x-1/2)
1*(2/3x^2-1/2x-2/3)+ 1*(1/2x^2+1/4x-1/2)
  2/3x^2-1/2x-2/3 + 1/2x^2+1/4x-1/2
  (2/3x^2+ 1/2x^2)+( -1/2x+ 1/4x)+ ( -2/3-1/2)
     7/6x^2  - 1/4x - 7/6