(2x) / (1+x^2)^2 = 2/5
I completely forgot how to solve equations with x^4
can someone tell me how to do this?
I take the denominator to the other side and factored it and got an equation with x to the 4th degree.
what was the equation you got? show us and we'll take it from there, there is no one way to attack a quartic, we must do it by case
EDIT: ok, this is not a "nice" quadratic, it does not have integer roots. so if you have to solve this by hand i see no other way to do it at the moment other than to use the quartic formula. which is a mess. you can use Cardano's or Galois' method (your professor is cruel)