For the Riemann Sum, [ $( 3.5 ) ^ { 4 }$

Short Answer

For the Riemann sum, [ $( 3.5 ) ^ { 4 }$ + 7(3.5) + $( 4 ) ^ { 4 }$ + 7(4) + $( 4.5 ) ^ { 4 }$ + 7(4.5) + $( 5 ) ^ { 4 }$ + 7(5)](0.5); a = 3, find n, b, and f(x).
Enter your answer as just n, b, f(x) (2 integers in that order separated by commas and followed by a polynomial in x).