Question

∫(x-1) e^(x^2=2x+4)

Answer 1

is it a question?

Answer 2

i guess it is:
\(\int(x-1)e^{x^2-2x+4}dx\)
if it is so, then notice that \(d/dx[x^2-2x+4] =2x-2=2(x-1)\)
so the integral can be put retrice \(1/2 \int(2x-2)e^{x^2-2x+4}dx=1/2(e^{x^2-2x+4})\)