Question 150831
(x^2)/(x^2+3x+2) divided by (x^2+2X)/(x^2-1)


Factor everything
x(x)/(x+2)(x+1)  divided by  x(x+2)/(x-1)(x+1)


Cancel out all like terms
x/1 divided by 1/x-1


Flip the second fraction and multiply
x/1 multiplied by x-1


x(x-1)
x^2-x


Answer: x^2-x