Posted by **Bllly** on Tuesday, August 4, 2009 at 11:39pm.

please help me to simplify this expression:

2/y^2-3y+2 + 7/y^2-1

- algebra -
**drwls**, Wednesday, August 5, 2009 at 1:14am
Do you mean

2/(y^2-3y+2) + 7/(y^2-1) ?

1/(y-1) can be factored out of both terms. That leaves you with

[1/(y-1)][2/(y-2) + 7/(y+1)]

That is not much simpler, however.

You could create a common denominator with the second bracketed term, but that won't simplify it much, either.

- algebra -
**MathMate**, Wednesday, August 5, 2009 at 8:23am
Please take care when transcribing questions involving fractions. All numerators and denominators have implicit parentheses around them, so when put onto a single line, they are *necessary*. An omission will change the value of the expression.

For example:

1/4x+3 is not the same as 1/(4x+3) because without parentheses division is done before addition.

- algebra -
**julie**, Tuesday, July 6, 2010 at 11:20pm
(x+5)over 6= 1- (x+5) over 7

(x+5)/6= 1- (X+5)/7

I know you have to get a CD of 42 but I can't get the write answer.

## Answer this Question

## Related Questions

- Algebra - Simplify radical terms, including fraction power expressions. Review ...
- Algebra - Simplify radical terms, including fraction power expressions. Review ...
- algebra 2 - On a second report that you reviewed, the team simplified the ...
- algebra 2 - 1.Simplify the difference. n^2 - lOn+24 9 / n^2 - 13n + 42 — 7 A. n...
- Alegbra - Translate the phrase to mathematical language. Then simplify the ...
- Algebra 2 Help - 1.) Solve for x. 2x(x - 12) = -40 2.) Solve for x. 3x2 + 2x = ...
- Algebra 2 - 1.) Solve for x. 2x(x - 12) = -40 2.) Solve for x. 3x2 + 2x = 12 - ...
- College Algebra - I have a few more questions that I'm not understanding. Its ...
- Algebra - 1. Subtract and simplify 18/y-8 - 18/8-y 2. subtract simplify if ...
- Algebra 1 - Simplify each expression. 1. 2x + 10/x+5 2.x^2 - 25/3x - 15 3. x^2...

More Related Questions