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Solve equation

  1. Mar 26, 2008 #1
    http://img340.imageshack.us/img340/1967/25616732jw6.jpg [Broken]

    i got answer of 0.4
    by trial and error, but i have seem to forgotten the basic of fraction....

    please guide me thanks
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Mar 26, 2008 #2
    Dividing by something is the same as multiplying by that something's reciprocal.
  4. Mar 26, 2008 #3
    i have tried that but still the power is larger than a quadratic, so i wasnt able to solve it
  5. Mar 26, 2008 #4
    Reduce the [tex]4-2x[/tex] terms and also with the left over [tex]4-2x[/tex] you can factor out a common term of 2.

    Factor our a common term of 3 in [tex]3-3x[/tex] and keep going from there.
  6. Mar 26, 2008 #5
    Another tip is to square root both sides to get rid of the even powers larger than 2 after you've done all that.
  7. Mar 26, 2008 #6
    did factor out the 3 it becomes 27, i think
    and cancelled some of the 4-2x , as you suggested

    but the main problem for me is still so much x,
    cant really isolate it, because i tried expanding it
    and i get like x^1 , x^2, x^3, X^4...
    and do not know how to solve those
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