SOLUTION: I'm homeschooled, and I've been working on this problem for a long time. My mother gave me the answer, but I can't seem to work the steps out. The question is: What are the sol

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Question 422034: I'm homeschooled, and I've been working on this problem for a long time. My mother gave me the answer, but I can't seem to work the steps out.
The question is:
What are the solutions to the equation 1 + (1/x^2) = (3/x).
The answer is:
x = (3/2) + ((sqrt 5)/2); x = (3/2) - ((sqrt5)/2)

Found 2 solutions by jim_thompson5910, stanbon:
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
Start with the given equation.


Multiply EVERY term by the LCD to clear out the fractions.


Subtract 3x from both sides.


Notice that the quadratic is in the form of where , , and


Let's use the quadratic formula to solve for "x":


Start with the quadratic formula


Plug in , , and


Negate to get .


Square to get .


Multiply to get


Subtract from to get


Multiply and to get .


or Break up the expression.


So the solutions are or


If you need more help, email me at jim_thompson5910@hotmail.com

Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you

Jim

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
What are the solutions to the equation 1 + (1/x^2) = (3/x).
Multiply thru by x^2 to get rid of the denominators:
x^2 + 1 = 3x
---
Rearrange:
x^2-3x+1 = 0
-----
Use the quadratic formula to get:
x = [3 +- sqrt(9-4*1)]/2
---
x = [3 +- sqrt(5)]/2
===
x = (3/2)+(1/2)sqrt(5) or x = (3/2)-(1/2)sqrt(5)
===================================================
Cheers,
Stan H.
============

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