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April 27, 2015

April 27, 2015

Posted by **Miley** on Saturday, September 14, 2013 at 11:35pm.

2 * square root 18

5* square root 48

3* square root 54

- Math quick help -
**Reiny**, Sunday, September 15, 2013 at 12:29amTo change an entire radical to a mixed radical, look for a factor of the number which is a PERFECT SQUARE.

e.g.

2√18

= 2*√9√2

= 2*3*√2

= 6√2

If there is no perfect square as a factor, then the radical cannot be changed to a mixed

Make yourself a short list of perfect squares

4,9,16,25,36,49,64,81,100, ......

5√48

= 5√16√3

= 5*4√3

= 20√3

you do the last one the same way.

btw, you can always check your result by using your calculator .

- Math quick help -
**Miley**, Sunday, September 15, 2013 at 12:32amOk thank u!!!!