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Solve equation

  • Thread starter jin.cao
  • Start date
13
0
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:

Answers and Replies

458
0
Dividing by something is the same as multiplying by that something's reciprocal.
 
13
0
i have tried that but still the power is larger than a quadratic, so i wasnt able to solve it
 
1,750
1
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.
 
458
0
Another tip is to square root both sides to get rid of the even powers larger than 2 after you've done all that.
 
13
0
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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