7.1 Integration By Parts/52

Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle \begin{align} & \int{}^{} x^4 e^x &\int{}^{} x^n e^x dx = x^n e^x - n \int{}^{} x^{n-1} e^x dx & x^4 e^x - 4 \int{}^{} x^3 e^x dx \end{align} }