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15*(2/5)^4-(11*(2/5))+2 = 0
16/625*15-(11*(2/5))+2 = 0
48/125-(11*(2/5))+2 = 0
48/125-(2/5*11)+2 = 0
48/125-22/5+2 = 0
2-502/125 = 0
-252/125 = 0
L <> R
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