Use the quadratic formula to solve for x: x+1/x=3

Question

anonymous · Answer

Simplify the left side by finding LCM.

anonymous · Answer

You'll get (x^2 + 1)/x = 3
x^2 + 1 = 3x
x^2 - 3x + 1 = 0
Now use quadratic formula.

anonymous · Answer

oh ok, thanks =)

anonymous · Answer

but where did you get x^2 from? it was only x.. o.O

jhonyy9 · Answer

but you need to push the restriction first of all becauese you work with fractions 
- yes ?

jhonyy9 · Answer

so what value not can getting never x and why ?

anonymous · Answer

We work with quadratic equations.. but there was only x, but somehow it has to become x^2, but I don't really know how...

jhonyy9 · Answer

how is right (x+1)/x=3 --- hence correct ?

anonymous · Answer

the problem was just written like this: |dw:1336753709364:dw|

jhonyy9 · Answer

so if this is right than how you need to make these calcules 
- first multiply both sides by x ,than will get 
x(x+1)
------ = 3x --- now simplifie x from numerator with x on denominator 
   x

than will get x+1=3x --- now subtract from both sides x
x+1 -x=3x-x
1=2x --- so now divide both sides by 2
1/2 =x so this will be the result

anonymous · Answer

ok thanks :)