If f : R → R, g : R → R be two functions given by f(x) = 2x - 3 and g(x) = x³ + 5, then (fog)⁻¹(x) is equal to - NDA Mathematics 2015 (II)

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If f : R → R, g : R → R be two functions given by f(x) = 2x – 3 and g(x) = x³ + 5, then (fog)⁻¹(x) is equal to