Use a rationalizing substitution (substitute for nth root) to convert ∫{x – 2}/{(x - 1) √(x+3) }dx into a polynomial ratio.
A. ∫(u – 1) /(u(√u+2) ) du
B. ∫(u – 2) /(u² – u) du
C. ∫(2u – 4) /(u - 1) du
D. ∫(u² – 5) /(u³ - 4u) du
E. ∫(2u² - 10) /(u² – 4) du
F. ∫(u – 1) /(u√(u+4) ) du