Write the following expression as a single definite integral of the form / F(x) dx. 3 X f (x) dx -1 Need Help? Read It Watch It Master It Submit Answer 8. [-/1 Points] DETAILS SCALCET9 5.2.058.MI. If ((x ) dx = 9.2 and ((x ) dx = 5 .7 , find ( F( x ) ax . Need Help? Read It Master It Submit Answer 9. [-/1 Points] DETAILS SCALCET9 5.2.059. IF ( f(x) dx = 39 and / 9(x) dx = 16, find / [21(x ) + 39(x)] dx. Need Help? Read It Watch It