Question

please help!

Answer 1

@electrokid could you help me please!

Answer 2

the term that is causing the trouble in this problem is:
\(x^4+6\)
so, we make the substitution
\(\Large u=x^4+6\)
then proceed as we did before

You can put your steps one by one here so I can check em and help you out

Answer 3

thanks.
Now I need to find out du.. and dx.
du=4x3dx
1/4du=x^3dx

Answer 4

coorect.
proceed

Answer 5

im happy. this is the first time i got du correct!
mm...
\[1/4\int\limits_{}^{}x^3 du?\]

Answer 6

remember, we cannot have any more "x"
once you subsitute, you should not have any more of that old variable