dx (x-2)^.5/(x+1) u = (x-2)^.5 du = (1/2)(x-2)^-.5 dx so dx = 2(x-2)^.5 du u^2 = x-2 so x = u^2+2 then du *2*u^2/(u^2+3) from integral table: int of dx x^2/(ax^2+c) =(x/a)-(c/a)int of dx/(ax^2+c)
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