SOLUTION: please help me simplify this problem? sqrt{{{75a^2}}}/sqrt{{{5}}}

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Question 78896: please help me simplify this problem?
sqrt75a%5E2/sqrt5
Answer by tutor_paul(519) About Me  (Show Source):
You can put this solution on YOUR website!
%28sqrt%2875a%5E2%29%29%2F%28sqrt%285%29%29
The first step is to recognize that sqrt%28a%5E2%29=a, so you can rewrite it as:
%28a%2Asqrt%2875%29%29%2F%28sqrt%285%29%29
Now, you need to see that 75=5%2A4%2A4, so you can also pull out a 4 from under the radical:
%284a%2Asqrt%285%29%29%2F%28sqrt%285%29%29
Finally, cancel out the sqrt%285%29 term, and you are done:
4a
Good Luck,
tutor_paul@yahoo.com