MEDAL FOR THE CORRECT ANSWER! rationalize the denominator!

Question

anonymous · Answer

attachment

raden · Answer

hint : multiply by sqrt(5)/sqrt(5)

anonymous · Answer

so the answer would be? 5x?

raden · Answer

no, 
sqrt(x)/sqrt(5) times sqrt(5)/sqrt(5)
just times numerator with numerator, denominator with denominator

anonymous · Answer

so what would the answer be?

raden · Answer

sqrt(x) * sqrt(5) = sqrt(5x)
sqrt(5) * sqrt(5) = sqrt(25) = 5
so, it is sqrt(5x)/5

anonymous · Answer

sqrt5x/5?

tkhunny · Answer

@meganemma1995 Why is everyone doing your homework for you?  Is this an exam that you should be doing on your own?

geerky42 · Answer

$$\dfrac{\sqrt{x}}{\sqrt{5}} \cdot1 = \dfrac{\sqrt{x}}{\sqrt{5}} \cdot \dfrac{\sqrt{5}}{\sqrt{5}} = \boxed{\dfrac{\sqrt{5x}}{5}}$$

anonymous · Answer

@tkhunny actually no.

tkhunny · Answer

Thanks for that reassurance.  I sure would like to see you post a problem WITH some work, rather than getting someone else to do it for you.  You do seem to have a clue, but it doesn't appear to be voluntary.  Go ahead and post one WITH a complete solution.  I promise to be delighted.