Find the Given Indefinite Integral $\int(7 x-4) e^{8 x+1} d x$

Multiple Choice

Find the given indefinite integral. State whether integration by substitution or integration by parts was used.
- $\int(7 x-4) e^{8 x+1} d x$

A) $-\frac{7}{8} x e^{8 x+1}+\frac{11}{64} e^{8 x+1}+C$ ; substitution
B) $\frac{8}{7} x e^{8 x+1}-\frac{39}{64} e^{8 x+1}+C$ ; parts
C) $\frac{7}{8} x e^{8 x+1}-\frac{39}{64} e^{8 x+1}+C$ ; parts
D) $-\frac{8}{7} x e^{8 x+1}+\frac{1}{8} e^{8 x+1}+C$ ; substitution