SOLUTION: please{{{ 2/x+3+5/x+3=-2/x^2-9 }} I have already gotten the common denominator of x+3 which breaks the equation down to 2+5=-2/x+3 Which I am unsure how to continue to get the so

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: please{{{ 2/x+3+5/x+3=-2/x^2-9 }} I have already gotten the common denominator of x+3 which breaks the equation down to 2+5=-2/x+3 Which I am unsure how to continue to get the so      Log On


   



Question 307386: pleaseplease 2/x+3+5/x+3=-2/x^2-9
}} I have already gotten the common denominator of x+3 which breaks the equation down to 2+5=-2/x+3 Which I am unsure how to continue to get the solution.

Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
2%2F%28x%2B3%29%2B5%2F%28x%2B3%29=-2%2F%28x%5E2-9%29+
Factor the third denominator, and the LCD will be (x+3)(x-3).
2%2F%28x%2B3%29%2B5%2F%28x%2B3%29=-2%2F%28%28x-3%29%28x%2B3%29%29+

Multiply both sides by (x-3)(x+3).


Divide out the factors to clear the denominators:
+2x-6+%2B5x-15=-2
7x+-21=-2
7x=19
x=19%2F7

For additional explanation on fractional equations, please see my own website. You can find my website by doing a Google search for my name "Dr. Robert J. Rapalje". Look for "Rapalje Homepage", which should be the first item on the search. Once you find my homepage, for a written explanation, click on "Basic, Intermediate, and College Algebra: One Step at a Time." Look in Intermediate Algebra in Chapter 2 for Section 2.07 Fractional Equations. There you will find a detailed explanation, and solutions to problems in LIVING COLOR!!

In addition, there is a FREE video of me teaching this topic a few years ago. To see the video, from my Homepage, look for "Rapalje Videos in Living Color." Choose Intermediate Algebra, and look for the video called "Fractional and Literal Equations."

I have many other topics explained in this way from Basic, Intermediate, and College Algebra. Please check out my website to see what I have. It's all FREE.

Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamonte Springs Campus