SOLUTION: find the positive root of the equation 4x^2-36=0

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Question 77464: find the positive root of the equation 4x^2-36=0
Answer by prabhjyot(165) About Me  (Show Source):
You can put this solution on YOUR website!
4x%5E2-36=0
add 36 to both sides of the equation
4x%5E2=+36
x%5E2=+36%2F4
+x%5E2+=9+
+x=sqrt%289%29+
x= +- 3
positive root is 3