Could someone please explain the y(adsbygoogle = window.adsbygoogle || []).push({}); _{2}solution for repeated roots in Frobenius method where y_{2}=y_{1}lnx+x^{s}[tex]\Sigma[/tex] C_{n}x^{n}

I am struggling to figure out how to solve this

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# Frobenius power series repeated roots

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