Stuck on this problem. Please help!

Question

1+u^4/u du

Answer 1

I assume you meant ∫(1+x^4)/x dx

= ∫( 1/x + x^3) dx
= lnx + (1/4)x^4 + c

oops, change my x's to u's

Answer 2

Thank you so very much for your help....