Calculus Problem: Simplifying xln(2x+1)-x+1/2ln(2x+1)+C

[Stevecgz]

In the solutions manual to my calculus text I don't understand how they are simplifying the following:

x\ln(2x+1)-x+\frac 1 2 \ln(2x+1)+C

to...

\frac 1 2 (2x+1)\ln(2x+1) -x +C

If someone could explain to me how they are simplifying this it would be appreciated.

Steve

 

[Pyrrhus]

First let's group

x\ln(2x+1)+\frac{1}{2} \ln(2x+1)-x+C

Factor the \ln(2x+1)

\ln(2x+1)(x +\frac{1}{2})-x+C

Multiply by \frac{2}{2}

\ln(2x+1) \frac{2}{2} (x +\frac{1}{2})-x+C

\ln(2x+1) \frac{1}{2} (2x +\frac{2}{2})-x+C

\ln(2x+1) \frac{1}{2} (2x + 1)-x+C

 

[Stevecgz]

Thank you much Cyclovenom, I understand now.

Steve