SymPy Gamma

Input:

expand%28%285x %2B 3%29*%281-x%29*%281%2B6x%29%29

Error:

expand%28%285x %2B 3%29*%281-x%29*%281%2B6x%29%29

expand %Integer (28 )%Integer (285 )*Symbol ('x' )%Integer (2 )*Symbol ('B' )*Integer (3 )%Integer (29 )*% Integer (281 )-Symbol ('x' )%Integer (29 )*%Integer (281 )%Integer (2 )*Symbol ('B' )*Number ('6' )*Symbol ('x' )%Integer (29 )%Integer (29 )

106: invalid syntax (<string>, line 1)

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