Questions on Algebra: Radicals -- complicated equations involving roots answered by real tutors!

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Question 153298: Solve this quadratic equation by Extracting square roots:
1. 1=1/3x^2 and
2. x/4=9/x: Solve this quadratic equation by Extracting square roots:
1. 1=1/3x^2 and
2. x/4=9/x
Answer by oscargut(666) About Me  (Show Source):
You can put this solution on YOUR website!
1=(1/3)x^2 then x^2=3 then x=sqrt(3) or x=-sqrt(3)
x/4=9/x then x^2=36 then x=6 or x=-6