OK, I can't figure this improper integral out -- I keep getting -ln2 and the answer is supposed to be ln2; integrate from -1 to infinity dx/(x^2+5x+6); I've tried partial fractions -- but that doesn't seem to work because I get 1/(x+2) + 0/(x+3) . . . and I can't do anything with that! Help!

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For the partial fractions, did you get
1=A(x+2)+B(x+3). This works out.

Well, I'll try again . . . I know I'm tired . . . so I'll try again!

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