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Year 9 Interactive Maths - Second Edition


Entire Surds

Mixed surds can be expressed in the form of entire surds.
Recall:

An entire surd is a surd in which the entire number is under the root sign.


Example 7

Solution:

In the above example, the technique used to write the mixed surd as an entire surd is to square the number outside the square root sign and place this square as a factor under the root sign. That is:


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