In this video the instructor shows who to simplify radicals. If you have a term inside a square root the first thing you need to do is try to factorize it. First factorize the numerical term. Write down the numerical terms as a product of any perfect squares. Now split the original radical expression in the form of individual terms of different variables. Now you can pull out the perfect square numerical factors out of the radical. Similarly for the variable terms write the variables as power of the square of the variables. Now to remove the radical cancel out the square of the variable against the square root giving you the simplified term. Do this to the rest of the equation and finally multiply all the individual terms to obtain the result. This video shows how to simplify radical expression by factorization.
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