Integrating (2x^2+1)/x dx

  • Thread starter shseo0315
  • Start date
  • #1
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Homework Statement



I haven't done much math for years.

just a little reminder would be very appreciated.

when you take integral for (2x^2+1)/x dx

I believe this can break down into integral 2x dx + integral 1/x dx

What I wondered about was is this summation of those two as written above

or the subtraction (integral 2x dx - integral 1/x dx)

thanks.

Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
Pengwuino
Gold Member
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15
You have it right. The integral can be split into two integrals like you have.
 
  • #3
HallsofIvy
Science Advisor
Homework Helper
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[tex]\frac{2x^2+ 1}{x}= \frac{2x^2}{x}+ \frac{1}{x}= 2x+ \frac{1}{x}[/tex]

Why would you even consider changing the "+" to "-"?
 

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