SOLUTION: simplify sqrt81x^4 My instructor made this problem up it is not in my book

Question 186374: simplify sqrt81x^4 My instructor made this problem up it is not in my book
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Start with the given expression.

Factor into .

Break up the square root using the identity .

Take the square root of to get .

Take the square root of to get .

Multiply.

==================================================

Answer:

So simplifies to

In other words, where "x" is non-negative.

RELATED QUESTIONS
This problem is not in the book nor can I find one like it to show me what to do, my... (answered by sarahschober)

simplify... (answered by checkley77)

m/m^2-m-12 + 5/m+3 This is what i came up with but i'm not exactly sure how i... (answered by stanbon)

The problem is not from a text book it is a homework sheet from my instructor; please... (answered by Alan3354)

I am confused on how to simplify this fraction. The text book says the answer is not... (answered by nerdybill)

Can you please help my son with this problem it is not in a text book... (answered by rapaljer)

Sorry, this is not out of a book, just a list of practice problems an instructor made up! (answered by ankor@dixie-net.com)

Given the root 5+2i find all roots of the equation x^3-7x^2-x+87=0 This is my first... (answered by Edwin McCravy)

This problem is not from a book. It is a an activity made by my instructor. Here is the... (answered by stanbon)