SOLUTION: Please help me !!i want to Know something.. when i get the hypotenuse for example the lengths are 6 and 3 and i get square root of 45 my teacher says that this problem isn't do

Question 429107: Please help me !!i want to Know something.. when i get the hypotenuse for example the lengths are 6 and 3 and i get square root of 45 my teacher says that this problem isn't done completly because i have to seperate them square root of 9 and 5 and then 3 square root of 5 but when we have i big number how 320 i don't know how to seperate them ..Help Me !!
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
Let h = hypotenuse
then

Next, factor the number under radical with prime numbers:

Pull out "pairs":

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