SOLUTION: I know how to do substitutions for equations that are quadratic in form, but what do you do if the exponents in the equation have different denominators and the same numerators lik

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Question 876799: I know how to do substitutions for equations that are quadratic in form, but what do you do if the exponents in the equation have different denominators and the same numerators like in this problem x^(3/2)-2x^3/4+1=0?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
You use a similar substitution, u=x%5E%283%2F4%29, u%5E2=%28x%5E%283%2F4%29%29%5E2=x%5E%283%2F2%29
u%5E2-2u%2B1=0
%28u-1%29%5E2=0
u-1=0
u=1
x%5E%283%2F4%29=1
x=1