Question 9651
1) Simplify:

{{{(5y^2-20y+20)/(8-4y)}}}

Factor the top and the bottom:

{{{5(y^2-4y+4)/4(2-y)}}}

Factor the top parentheses and rewrite the bottom:

{{{(5(y-2)(y-2))/-4(y-2)}}}

Finally, cancel the (y-2) in the top & bottom:

{{{-5(y-2)/4}}}

2) Simplify:

{{{(x^2-y^2)/(xy+x^2)}}}

Again, factor the top & bottom:

{{{((x+y)(x-y))/x(y+x)}}}

Cancel the (x+y) in the top with the (y+x) in the bottom. Because (y+x) = (x+y)

{{{(x-y)/x}}}