Posted by **Jaz** on Sunday, November 22, 2009 at 11:47am.

A few questions on simplifying rational expressions...

1). 15x^2/10x this simplifies to 3x^2/2 according to my book. But I would think it should be 3/2x since x^2-x=x. Why not?

2). Simplify 3xy/xy+x. How come the (xy)'s don't cancel so you are left with 3/x?

3). Can you break it down, step by step how (4y-8y^2)/(10y-5) becomes -4y/5?

Thank you!

- Algebra -
**PsyDAG**, Sunday, November 22, 2009 at 12:53pm
1. You need to divide both numerator and denominator by the same term, in this case, 5x.

x^2-x = x(x-1) ≠ x

2. You need to divide both by the same term.

(xy+x)/xy = 1 + 1/y

3. Sorry, but I have to leave now.

## Answer this Question

## Related Questions

- Math! - 1) What is the value of 19 + 5a^4 + 3b^2 when a = 2 and b = -4? (this ...
- Algebra 2 - Combine The Rational Expressions and Simplify (3x-7)/(x^2-12x+27)-(...
- Algebra-Please check my answers - Posted by Jessie on Monday, October 18, 2010 ...
- Algebra-Please check my answers - Posted by Jessie on Monday, October 18, 2010 ...
- bobpursly, - Is this correct now after i revised it Multiply. 3xy^2(5xy-4x+6y) ...
- math - •Post a response to the following: Take any number (except for 1...
- algebra 1 - Simplify the rational expressions,if possible.State the excluded ...
- algebra - Take any number (except for 1). Square that number and then subtract ...
- Algebra - Take any number (except for 1). Square that number and then subtract ...
- ALGEBRA - i NEED MORE THAN JUST THE EXAMPLE i ALSO NEED TO EXPLANATION Take any ...

More Related Questions