# Integral question

1. May 4, 2010

### apiwowar

integral of x/x2 +2x+2

so the first thing i did was complete the square which gave me

integral of x/(x-1)2+1

then i tried substituting by w=x-1 and dw = dx but that leaves the x on the top.

what am i not seeing?

2. May 4, 2010

### zachzach

$$\frac{x}{x^2} + 2x +2 = \frac{1}{x} +2x +2$$

Just do each of those separately.

3. May 4, 2010