# math

posted by .

I need to subtract and simplify

2/x^2-6x-27 -1/x^-12-27

I got so far

2/(x-9)(x+3) - 1/(x+9)(x+3)

• math -

lowest common denominator is
(x-9)(x+9)(x+3)

(2(x+9) - (x-9))/lcd or
(x+27)/LCD

## Similar Questions

1. ### algebra,math,help

Use Property 2 to simplify each of the following radical expressions. sqrt (10)/ sqrt(49) My answer: sqrt (10) / (7) THis next one i need help: Use the properties for radicals to simplify each of the following expressions. Assume that …
2. ### Calculus

Could someone please check my work on the following problems?
3. ### Math

I have 2 problems that I just need to know if they are right 1. Add, Simplify if possible 3/14w + 11/49w Answer that I got was 21+22/98w 2. Add, simplify if possible 9b/3b-9 + 6b/9b-27 I am not sure about this one I got two answers …
4. ### Math 117

subtract and simplify if possible 4-z - 8z-5 = z-2 2-z not sure if i got this typed right thank you for anyhelp you may give
5. ### Urgent Math please check

Very Important I can get someone to check these for me... I have to get an A, and I was wondering if someone could double check these for me. I am about 95% sure they are right, but just need a fresh set of eyes. I know I've been sending …
6. ### Math 141

I am having trouble with this problem. perform the indicated operations and simpily the result as much as possible a) (3x - 2) (x^2 + 2x - 4 ) the answer i got so far is 3x^3 + 4x^2 -16x + 8. Am i done or i have to conitnue to simplify?
7. ### MATH

i need to write each expression as a product of the same factor: * = multiply can you check these please a^2 i got a*a 19^3 i got 19*19*19 -6^2 i got 6*6*-1 -x^3 i got x*x*x*-1 (-5)^4 i got (-5)*(-5)*(-5)*(-5)*(-5) 4^3 i got 4*4*4 …
8. ### Math

Here are the questions I need help with, please help. [(1/4)^-3 divide sign (1/4)^2]^-2 I got (1/4)^10 but I got it wrong (3^1/2)^3 _______ I got 1/216 9 (-56r^2)divide sign (-7r^2)= I got 8r x(y)(x)(2y) (12) (10xy^3) (3x^2y^2) (5x) …
9. ### Math Ms. Sue

Here are the questions I need help with, please help. [(1/4)^-3 divide sign (1/4)^2]^-2 I got (1/4)^10 but I got it wrong (3^1/2)^3 _______ I got 1/216 9 (-56r^2)divide sign (-7r^2)= I got 8r x(y)(x)(2y) (12) (10xy^3) (3x^2y^2) (5x) …

Here are the questions I need help with, please help. [(1/4)^-3 divide sign (1/4)^2]^-2 I got (1/4)^10 but I got it wrong (3^1/2)^3 _______ I got 1/216 9 (-56r^2)divide sign (-7r^2)= I got 8r x(y)(x)(2y) (12) (10xy^3) (3x^2y^2) (5x) …

More Similar Questions