SOLUTION: What is the LCD of this rational expressions: 7/x+4+1/x=8

Algebra.Com
Question 415925: What is the LCD of this rational expressions: 7/x+4+1/x=8
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
What is the LCD of this rational expressions:
7/(x+4)+1/x=8
----
LCM = x(x+4)
----
Multiply thru by the LCM to get:
7x + (x+4) = 8x(x+4)
8x+4 = 8x^2+32x
8x^2+24x-4 = 0
----
2x^2+6x-1 = 0
---
Solve using the Quadratic Formula:
==========
Cheers,
Stan H.
===========
RELATED QUESTIONS

Find the LCD for the given rational expressions and convert each rational expression into (answered by nyc_function)
find the lcd for given rational expressions, and convert rational expression into an... (answered by stanbon)
Combine the rational expressions:

x + 2     x - 4   8(x + 1)
—————  +  ————— +  (answered by Edwin McCravy)

4 / x -y , 5 / 6 - a

A) Find the LCD for the rational expression.

B) Convert to... (answered by richwmiller)

I need help on finding the least common denominator (LCD) of two rational expressions.

 (answered by benni1013)

Adding Rational Expressions

Please walk me thru each step, but especially involving... (answered by Edwin McCravy)

What is the LCD of x-7 and... (answered by greenestamps)

Find the LCD for the following rational expressions.

-3 / x^2 - 2x + 1          2x /... (answered by Alan3354)

Find the LCD for the following rational expressions. 

(-3 / x^2 - 2x + 1) (2x / x^2 -... (answered by nyc_function)