Aim: How do we do the operations of radical expressions?

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Aim How do we do the operations of radical
expressions?
Do Now 1. Add
2. Subtract
3. Add
4. Subtract
2
To add or subtract radicals, we need to identify
the like terms and unlike terms. The we can treat
it as adding or subtracting polynomials.
and
are like terms
are like terms
and
Lets see the following examples


Add
Subtract
If we dont see like terms, then we need to
simplify the radicals to find the like terms if
possible.
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In order to add or subtract, the radical
expression must have the same index and the same
radicand.
4
To multiply or divide radicals, we do it just
like multiply or divide polynomials, and then we
need to simplify if applicable.
We cannot combine 2x 2y or 2x 2y, but we can
do and
Multiply then simplify

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