I dont even know where to start with this Can anyone help me

I dont even know where to start with this. Can anyone help me figure this out. Im supposed to use C as an arbitrary constant. THankyou!

Substitute (x^6+9)=t 5x^5dx=dt the integral becomes [cos(t)sqrt(sint)]/5 now put sint =u^2 costdt=2udu integral becomes 2u^2du/5 =2u^3/15 +C =2(sint)^3/15 +c =2(sin(x^6+9)/15 +C