SOLUTION: my question is a 2 part A and B A) 4 ___________ __ Rationalize the denominator and simplify 3rd Root 25x^2 I can't seem to fi

Algebra ->  Square-cubic-other-roots -> SOLUTION: my question is a 2 part A and B A) 4 ___________ __ Rationalize the denominator and simplify 3rd Root 25x^2 I can't seem to fi      Log On


   

Question 470216: my question is a 2 part A and B
A)

4
______________ Rationalize the denominator and simplify
3rd Root 25x^2
I can't seem to find a solution to this one. I've done it over 5+ times
B)
Rationalize denominators having two terms

sqroot 5 - sqroot 6
___________________
sqroot 5 + sqroot 6
Thank you for your time. I am really lost in the steps to get the answer in both. I need to see it to fully understand it and I want to understand it and not just get the answer.
Thanks again for your help
Allen
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
Allen, the main purpose of these problems - remove the root from the denominator
A) 4%2Froot%283%2C+25x%5E2%29
Mulitply numerator and denominator by root%283%2C+5x%29

B) %28sqrt%285%29-sqrt%286%29%29%2F%28sqrt%285%29%2Bsqrt%286%29%29
Mulitply numerator and denominator by %28sqrt%285%29-sqrt%286%29%29