Posted by **jazmin** on Friday, October 8, 2010 at 7:41am.

please is there anybody who can help me to do my assignment about sums and differences of a rational algebraic expression this is the problem.... x^2/x-y - y^2/x-y=? another is 3y/3y-5 - 5/3y-5=? another is 10/x-3 - 2x+9/x-3 + 5x-7/x-3 please answer it.......

- math -
**Reiny**, Friday, October 8, 2010 at 8:19am
You must have meant

x^2/(x-y) - y^2/(x-y)

= (x^2 - y^2)/(x-y) , you had a common denominator

= (x+y)(x-y)/(x-y) , difference of squares at the top

= x + y , x ≠ y

## Answer this Question

## Related Questions

- math - my topic is all about sums and differences of a rational algebraic ...
- math - can you answer this please about sums and differences of a rational ...
- math - x+4/2 - x-1/5 + 2x+5/10 another is 3b/7a - a/2b + 3a^2-2b^2/14ab another ...
- math - please can you answer this is all about sums and differences of rational ...
- math - please answer this my topic is all about sums and differences of rational...
- math - sums and differences of rational algebraic expression please answer the ...
- math - please answer this my topic is all about sums and differences of rational...
- math - sums and differences of a rational algebraic expression 3/a + 2/ab + 1/...
- math - sums and differences of rational algebraic expression answer the ...
- math - sums and differences of rational algebraic expression answer the ...

More Related Questions