Why $x^{2}(x−1)^{2}(x^2+1)+y^2$ is irreducible in $\mathbb{C}[x,y]$?
I tried to do it directly, but I have problems. Could anyone give me an hint? I don't want a solution. I think it's very easy, but at this moment I have problem to claim it.
Why $x^{2}(x−1)^{2}(x^2+1)+y^2$ is irreducible in $\mathbb{C}[x,y]$?
I tried to do it directly, but I have problems. Could anyone give me an hint? I don't want a solution. I think it's very easy, but at this moment I have problem to claim it.
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