# math

What is the least common denominator of the rational expressions x-1/x^2+8x+7 and -3/x^2+x

1. 👍 0
2. 👎 0
3. 👁 52

## Similar Questions

1. ### Algebra

A. Find the LCD for the given rational expression. B. Rewrite them as equivalent rational expressions with the least common denominator. 5/a^2+5a+4, 4a/a^2+3a+2

2. ### Algebra

A. Find the LCD for the given rational expression. B. Rewrite them as equivalent rational expressions with the least common denominator. 5/a^2+5a+4, 4a/a^2+3a+2

3. ### evans

Find the least common denominator of the rational expressions. and

asked by algebra on November 23, 2014
4. ### algebra

least common denominator for these two rational expressions. ( / stands for fraction bar and the ^ means it's squared. i don't understand these at all. a/ a^2-36 2a/a^2+5a-6

asked by whitney on February 28, 2012
5. ### Math

Add or subtract the following rational expressions. Be sure to look for factors before trying to determine a common denominator, and simplify your answers, if possible. 16x-12/4x^2+5x-6-3/x+2

asked by Anonymous on February 8, 2016
6. ### MATH

Find the least common denominator of the two rational expressions. 4k 2 ________ + ________ k^2 - 9 3 - k

asked by Skye on May 30, 2014
7. ### algebra

what are rational expressions? Why must we always be mindful of the final value of the denominator in a rational expression? For example, consider the rational expression 3x/(x2 – 16). What values in the denominator must we be

asked by thresea on October 5, 2011
8. ### SAT Math

True or False: The least common denominator of each denominator in the following rational expression is (z-4)(z+4)(z-1)(z+1): 8 / z^2+5z+4 = 1 / z-4 + 1 / z-1 I am stuck on this one...

asked by mysterychicken on May 31, 2013
9. ### algebra !

i need help on adding and subtacting rational numbers like -7over12+5 over 6 When adding rational numbers we need a common denominator. We have -7/12 + 5/6 What is the least common multiple of 12 and 6? After you find that make

asked by makhissa on September 19, 2006