Posted by **April** on Friday, July 12, 2013 at 2:49pm.

Solve for x.

x/(x-2) + (2x)/[4-(x^2)] = 5/(x+2)

Please show work!

- Math -
**Steve**, Friday, July 12, 2013 at 3:01pm
putting everything over a common denominator of (x-2)(x+2), we have

x^2 = 5(x-2)

x^2 - 5x + 10 = 0

then just solve that for x

Make sure that x ≠ ±2 since those values are not allowed in the original equation

- Math -
**MathMate**, Friday, July 12, 2013 at 3:08pm
x/(x-2) + (2x)/[4-(x^2)] = 5/(x+2)

This calls for finding the common denominator, and then solving for x using the numerators.

Do not forget to exclude the asymptotes values of x where the denominator becomes zero.

LCM (lowest ommon multiple) of denominators (x-2), (4-x²) and (x+2) is (x²-4), since (x-2)(x+2)=(4-x²)

Provided that x≠2 and x≠-2, then we can write the equation above as:

[x(x+2)-2x]/(x²-4) = 5(x-2)/(x²-4)

provided x≠2 and x≠-2

Equating numerators,

x²+2x-2x=5(x-2)

=>

x²-5x+10=0

However, the solution does not have real roots. The complex roots are:

x=(5±√*i)/2

- Math -
**MathMate**, Friday, July 12, 2013 at 3:09pm
x=(5±(√15)*i)/2

If you do not expect complex roots, please check for typos in the original question.

- Math -
**April**, Friday, July 12, 2013 at 3:19pm
Thank you guys! That is what I got. I wasn't expecting the complex roots.. That's why I wanted to check whether or not I was doing it right!

- Math :) -
**MathMate**, Friday, July 12, 2013 at 4:31pm
You're welcome!

## Answer this Question

## Related Questions

- math - 2. Simplify. Please be sure to show all of your work. -3(-9) – |-5 – 3 3...
- mat115 - Please help me with this math question. I am asked to show my work but ...
- Math - 6x-4y=54 -9x+2y=-69 Which system would work best to solve? Please show ...
- prealgebra - can you please help me and help me solve this and show work: ...
- math. solve for t - 1/1024=42*0.5^(t/12.5) Solve for t. Please show work. Much ...
- Math..solve for u - Solve u-2[2=3 [ is square root. Please show work
- math - solve: 4+8 1/2 -:- (1/4) to the third power. solve -11-(x+30)=-41-2 (5x-...
- math - Can someone please help me with this math problem. My teacher is looking ...
- Math - w/4-w/5-1/3=16/15 Please help me solve this and show your work. Thanks
- Math - r/3+7-r/5=-3 Please help me solve this and show your work

More Related Questions