Factor
\frac{y^{2}+2\sqrt{5y^{2}+60-8\sqrt{15}}}{4}
Evaluate
\frac{y^{2}+2\sqrt{5y^{2}+60-8\sqrt{15}}}{4}
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\frac{y^{2}+2\sqrt{y^{2}+4y^{2}-8\sqrt{15}+60}}{4}
Factor out \frac{1}{4}.
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