SOLUTION: Can you please help me solve this problem? I have to rationalize. (2) over (the square root of 5)

Algebra ->  Square-cubic-other-roots -> SOLUTION: Can you please help me solve this problem? I have to rationalize. (2) over (the square root of 5)      Log On


   

Question 190607: Can you please help me solve this problem? I have to rationalize. (2) over (the square root of 5)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
2%2Fsqrt%285%29 Start with the given expression.


%282%2Asqrt%285%29%29%2F%28sqrt%285%29sqrt%285%29%29 Multiply both the numerator and denominator by sqrt%285%29


%282%2Asqrt%285%29%29%2F%285%29 Multiply sqrt%285%29sqrt%285%29 to get sqrt%285%29sqrt%285%29=sqrt%285%2A5%29=sqrt%285%5E2%29=5


So 2%2Fsqrt%285%29=%282%2Asqrt%285%29%29%2F%285%29