Question

Substitution Rule(again...)
See below.

Answer 1

\[\int\limits (\frac{ x+1 }{ (x^2++2x-3)^2 })dx\]

Answer 2

u=\[x^{2}+2x+3\]
du = 2x +x = 2(x+1)

Answer 3

2x + 2*

Answer 4

du = 2(x+1)dx
1/2 du =(x+1) dx

Answer 5

what i have so far:
u = (x^2+2x-3)
du = (2x+2)dx
dx = du/(2x+2)
how do i get x in terms of u?

Answer 6

ohh @RadEn i get what u did....