Addition and subtraction of surds

Addition and subtraction of surds

May be you just come across this page it`s is good for you to understand the basics of surd, so that when adding or subtracting surds it won`t be somehow confusing.

Addition and subtraction of surds can be performed on two or more surds, if they are like surds (number under their radical are the same), also the surds should be first simplified if require.

Examples 1:

Examples 2:

Examples 3:

The surds should first be simplified if require.

"To simplify a surd, express the number under the radical as a product of two factors, one of which is a perfect square, then streamline the surd by taking the square root of the perfect square."

Examples 4:

Wondering how root 9 turns to 3 read on.

Examples 5:

Find the square root of 9, 3 * 3 is 9. See the diagram.

Always practice after you have been taught something. 

Comment your answer below or if you have any other question.