Tìm nguyên hàm J=∫(lnx+1)lnx / (lnx+1+x)^3dx

A. $\frac{x^2}{2\ln x-1+x}-\frac{x}{2\left(\ln x+x\right)}+C$

B. $\frac{x^2}{2\ln x-1-x}-\frac{x}{2\left(\ln x+2x\right)}+C$

C. $\frac{x^2}{2\ln x-1+x}+2\frac{x}{2\left(\ln x+x\right)}+C$

D. Đáp án khác