## Thursday, July 11, 2013

### Algebraic Operations - Radicals, 26

Category: Algebra

"Published in Newark, California, USA"

Perform the indicated operations

Solution:

Consider the given equation above

If you will multiply a radical with another radical with the same index, then the terms inside the radicals will be multiplied together.

How about if you will multiply a radical with another radical with different index? If their indexes are different, then you cannot multiply the terms inside the radicals together. The given equation above is an example of multiplication of radicals with different indexes. The given equation above can be written as

Next, convert the exponential fractions into their common denominator by getting their Least Common Denominator (LCD) as follows

The LCD of 2 and 3 is 6. ½ becomes 3/6 (6 ÷ 2 x 1 = 3) and ⅓ becomes 2/6 (6 ÷ 3 x 1 = 2). The above equation can be written as

Since the index of the two radicals are now the same, then the terms inside the radicals can be multiplied together as follows