Module four

Module 4 – Discussion

In this discussion you will reflect on your knowledge of radical expressions.

Instructions:

1. Post a response to the following questions:
   1. Why is it important to simplify radical expressions before adding or subtracting?
   2. Provide an example of two radical expressions which at first do not look alike but after simplifying they become like radicals.

Answer  preview

higher. Radicals are the opposite of exponents, and as in exponents, which can be utilized in high numbers, the radicals can be used in smaller roots. Simplifying radical expressions is important before subtraction and addition as it makes it easier to subtract and add as it enables the combination of like terms. When subtracting or adding radicals, the two keys include the radicand and the index. If the two keys are similar, hence subtraction and addition are possible. If not, the two radicals cannot be combined. Simplifying enables changing the radicals so that the radicals will be similar to the others. For example, the terms two squared and three squared cannot be combined since they are not identical (Hendrycks et al., 2021).

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