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Y in (-oo:+oo)
4^2-Y = 1/64 // - 1/64
4^2-Y-(1/64) = 0
4^2-Y-1/64 = 0
1023/64-Y = 0 // - 1023/64
-Y = -1023/64 // * -1
Y = 1023/64
Y = 1023/64
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