Minor issue in 2.56 part b

[ChethanM555]

for Gam function
h(x) function should only depend on x but in the solution it also depends on eta1.
Alternative solution,
taking x^eta1 as exp(eta1*ln(x)) we get
eta = same
h(x) = x^-1
g(eta) = same
u(x) = [ln(x) -1]