### Antiderivative involving 1/x 1

Worked problem in calculus. The antiderivative of f(x) = (x^3-2x^2+x+1)/(x+2) is computed by two methods. The first uses synthetic division. The second uses the substitution u = x+2. In both cases, a key step is that int 1/x dx = ln|x| + C

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