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4 bytes added, 10:41, 12 August 2014
Notes for teachers
===Notes for teachers===
1.Like surds: A group of surds having same order and same radicand in their simplest form .
Example: <math>3\sqrt{5}, 7\sqrt{5}, x\sqrt{5}</math><br>
2.Unlike surds: Groups of surds having different orders or different radicandsor both in their simplest form .
Example: <math>\sqrt{a}, 3\sqrt{2}, x\sqrt{5}</math><br>
3.Addition and sustraction of surds.
Example: <math>2\sqrt{5}+3\sqrt{5}-\sqrt{5}</math><br>
4.Multiplication of surds.
Example: <math>\sqrt{3} X 2\sqrt{5}</math><br>

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