Question

finding the anti derivatives by substitution. 2/(1-x)^2dx

Answer 1

oh parenthesis around the (1-x)^2

Answer 2

I have u=1-x
du=d(1-x)
du=-1 dx

Answer 3

good, from there, multiply both sides by -1 in your last step

Answer 4

\[\Large dx=-du \qquad\text{right?}\]