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[" If "y^(-2)+y^(-)=2x," then "(x^(2)-1)...

[" If "y^(-2)+y^(-)=2x," then "(x^(2)-1)y_(2)" is equal to "],[[" (a) "xy_(1)+ar^(2)y," (b) "xy_(1)-m^(2)y],[" (c) "-xy_(1)+m^(2)y," (c) "-xy_(1)-m^(2)y]]

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