Find solution
Find the LCD of the rational expressions.

Help with find the LCD of rational expressions?

  • So I have the problem u^2-2u/u^2-6u+9+4/4u-12. So I was figuring out the LCD and I came out with 4(u-3)^2 but the book says (u-3)^2. What happens to the 4. If you factor them out you ...show more

  • Answer:

    You've written the expression incorrectly. Since you have to write it in one line, it needs parentheses: (u² - 2u)/(u² - 6u + 9) + 4/(4u - 12). Before you calculate the LCD, make sure each fraction is in lowest terms. 4/(4u - 12) = 4/(4(u-3) = 1/(u-3) (u² - 2u)/(u² - 6u + 9) + 4/(4u - 12) = (u² - 2u)/(u-3)² + 1/(u-3) = (u² - 2u)/(u-3)² + (u-3)/(u-3)² The LCD is (u-3)².

FGSIKVV44YFUNWWBW2WZZ6GBCU at Yahoo! Answers Visit the source

Was this solution helpful to you?

Other answers

Factor each expression Simplify each expression then look for LCD Note: Domain restrictions are based on the original expression

Mike Brown

[(u^2 - 2u) / (u^2 - 6u + 9)] = u(u - 2) / (u - 3)^2 4 / (4u - 12) = 4 / 4(u - 3) = 1 / (u - 3) [u(u - 2) / (u - 3)^2] + [1 / (u - 3)] LCD is (u - 3)^2 [(u^2 - 2u) / (u - 3)^2] + [(u - 3) / (u - 3)^2] (u^2 - 2u + u - 3) / (u - 3)^2 (u^2 - u - 3) / (u - 3)^2

David

Related Q & A:

Just Added Q & A:

Find solution

For every problem there is a solution! Proved by Solucija.

  • Got an issue and looking for advice?

  • Ask Solucija to search every corner of the Web for help.

  • Get workable solutions and helpful tips in a moment.

Just ask Solucija about an issue you face and immediately get a list of ready solutions, answers and tips from other Internet users. We always provide the most suitable and complete answer to your question at the top, along with a few good alternatives below.