Ebatzi: a, n, b, c, d (complex solution)
a=0\text{, }n\in \mathrm{C}\text{, }b=49\text{, }c=49\text{, }d=49
a\in \mathrm{C}\text{, }n=0\text{, }b=49\text{, }c=49\text{, }d=49
Ebatzi: a, n, b, c, d
a=0\text{, }n\in \mathrm{R}\text{, }b=49\text{, }c=49\text{, }d=49
a\in \mathrm{R}\text{, }n=0\text{, }b=49\text{, }c=49\text{, }d=49
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