Question

Evaluate the Integral

Answer 1

\[\int\limits_{1}^{\infty}\frac{ 5 }{ (4x+5)^3 } dx\]

Answer 2

Don't pay attention to the limits for now. Evaluate the indefinite integral.

Answer 3

You would use U-Substitution right?
To get:
\[\frac{ -5 }{ 8u^2 } \]

Answer 4

I know what I did. I didn't plug u back in before using the limits.

Answer 5

Yes, I believe that's it.