Question

integral of (7x/(x^2-4))dx

Answer 1

\[\large \int\limits\frac{7x}{x^{2}-4} dx\]
let u= x^2 - 4 => du/ 2x
\[\large \int\limits\frac{7x}{u} *\frac{du}{2x} \]
\[\large \frac{7}{2} \int\limits\frac{1}{u} du\]
Then integrate it..