Question

how do you integrate one of these though?

see picture

Answer 1

Separate it; integrate 4/u^3 first, then integrate u^2/u^3 (which is just 1/u)

Answer 2

so -2/u^2 + ln |u|

Answer 3

\[=\int\limits_{ }^{}4/u ^{3}du +\int\limits_{ }^{}u ^{2}/u ^{3} du=\]
simplify second..
done!

Answer 4

+c sorry

Answer 5

right!