Simplify the square root of an expression with four variables

The video tutorial explains how to handle variables separately when dealing with square roots. It demonstrates rewriting expressions using power rules to simplify them. The process involves expressing terms as squares to easily take square roots, resulting in simplified expressions outside the radical. The tutorial concludes with a simplified expression and remaining terms under the radical.

What is the significance of rewriting terms as raised to the second power?

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What remains under the radicals after simplifying the expression?

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