SOLUTION: Ok, I know this should be easy, but i forget how to do this type of question when the first y has a # in front of it. Ya, sounds dumb, but I really need help please and thank you!

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: Ok, I know this should be easy, but i forget how to do this type of question when the first y has a # in front of it. Ya, sounds dumb, but I really need help please and thank you!      Log On


   

Question 9651: Ok, I know this should be easy, but i forget how to do this type of question when the first y has a # in front of it. Ya, sounds dumb, but I really need help please and thank you!!!!! For some reason I keep getting the wrong answer...simpify, and get -5(y-2)/4
5y^2-20y+20/8-4y
and second question is x2-y2/xy+x2...now for this i keep getting the simplified answer of x-y/x^x....but i am supposed to get x-y/x and i dont know how to get there. please more help!
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
1) Simplify:
%285y%5E2-20y%2B20%29%2F%288-4y%29
Factor the top and the bottom:
5%28y%5E2-4y%2B4%29%2F4%282-y%29
Factor the top parentheses and rewrite the bottom:
%285%28y-2%29%28y-2%29%29%2F-4%28y-2%29
Finally, cancel the (y-2) in the top & bottom:
-5%28y-2%29%2F4
2) Simplify:
%28x%5E2-y%5E2%29%2F%28xy%2Bx%5E2%29
Again, factor the top & bottom:
%28%28x%2By%29%28x-y%29%29%2Fx%28y%2Bx%29
Cancel the (x+y) in the top with the (y+x) in the bottom. Because (y+x) = (x+y)
%28x-y%29%2Fx