SOLUTION: I need help with this problem x^(3/2) - 2x^(3/4) +1 =0

Algebra ->  Linear-equations -> SOLUTION: I need help with this problem x^(3/2) - 2x^(3/4) +1 =0      Log On


   

Question 783819: I need help with this problem
x^(3/2) - 2x^(3/4) +1 =0
Answer by xinxin(76) About Me  (Show Source):
You can put this solution on YOUR website!
Assume x^(3/4)=A, then x^(3/2)=x^(3/4*2)=A^2. The function turns out to be A^2-2A+1=0
Get A=1, therefore x=1