SOLUTION: simplify the expression. all variables represent positive real numbers. Please help me! thanks! square root of: 80x^9y^11

SOLUTION: simplify the expression. all variables represent positive real numbers. Please help me! thanks! square root of: 80x^9y^11

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Question 79639: simplify the expression. all variables represent positive real numbers. Please help me! thanks!
square root of:
80x^9y^11
Answer by tutor_paul(519) (Show Source): You can put this solution on YOUR website!

First, recognize that you can pull an out from under the radical. Why? Because the equation can be re-written as:
, and
. So, you now have:

By the same logic, you can also pull out a y^5 term, giving you:

Now, we can work on simplifying that "80"... specifically, recognize that:

So, you can pull a 4 out from under the radical, leaving you with:

Good Luck,
tutor_paul@yahoo.com
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