Wednesday

October 22, 2014

October 22, 2014

Posted by **J** on Tuesday, August 16, 2005 at 1:54pm.

For all r (<INSERT>is not equal to sign)+ or - 2

r(squared) - 5r+6

(All Over)

r(squared)- 4

I know the answer is r-3/r+2, but I do not know the steps to use to get the answer.

Jessica

First let me rewrite that in a way I recognize

r^2 - 5r + 6

____________

r^2 -4

Both the numerator and denominator can be factored to give

(r-3)(r-2)

__________

(r+2)(r-2)

The r-2 terms can be cancelled to give

(r-3)/(r+2)

The bit about r not being allowed to be = or -2 is because that would put a zero in the denominator, making the fraction be "indeterminate" or without meaning. For any other r, (r-3)/(r+2) is the answer.

Thank you for your help it is greatly appreciated :)

36a^2bc^5-6abc^3/-6abc^3

The Square root of 98?

need more help. need to see more problams about rationals.

need more help. need to see more problams about rationals.

17a+5b

--- --

bc ac

**Answer this Question**

**Related Questions**

Algebra - Does anyone know the significance of the rational zero test? Is it the...

College testing - Im gettin ready to take a placement test for Devry Unviersity...

math, algebra - what are some challenges about working with rational expressions...

Algebra - I am going to take an Accuplacer math placement test later this week. ...

English - There is a placement test for Writing 121 and I need to earn a certain...

Math-Rational #'s - Just trying to understand this. Please let me know if I did ...

math - i'm studying for a test on rational expressions and i just wanted to know...

trig - hi, I have a placement test coming up tomorrow, and I'm pretty confident ...

algebra1 - I have a question does anyone have the Rational Expressions and ...

Math - what you have learned about rational expressions and their applications, ...