You will need to look at simplifying the division of surds by using the following rule:

#### Rule to remember:

## Examples

#### Examples in the video

Simplify the following:

You will need to look at simplifying the division of surds by using the following rule:

Simplify the following:

StephenNovember 26, 2016 at 11:20 amPlease could you explain why this is not plus or minus 4 / sq root of 5?

Stuart the ExamSolutions GuyNovember 27, 2016 at 5:56 pmIt is not the result of an equation, say x^2 = 16/5. If it was then I agree it would be x= plus or – 4/(root 5). This is not an equation and it just wants the positive value as there is no plus or minus in front of it.

Annonymous123December 7, 2016 at 10:43 pmWhat would you do if lets say it was 10 root 8 divided by 2 root 9, when typed in the calculator i get 10 root 2 over 3, i was under the impression it would be over 6, since 2 multiplied by the simplified version of root 9 (so 3) is 6, and i dont understand how you would get 10 root 2. Help is much appreciated

Stuart the ExamSolutions GuyDecember 9, 2016 at 8:00 pm(10 root 8)/(2 root 9) Now root 8 is the same as (root 4 x root 2) which is 2 root 2. and root 9 is 3

So simplifying further (10 root 8)/(2 root 9) = (5 root 8) / (root 9) is (5 x 2 root 2) / 3 which is 10 root 2 / 3

anonDecember 23, 2016 at 11:57 pmreally helpful I used to hate surds now I can easily solve them

AttabJanuary 1, 2017 at 12:51 pmHey,

I got a question which says

root 18 plus 10 divided by root 2

and i have to give my answer in the form of a + b root 3

i dont know how to answer and i looked through all the vids couldnt find anything similar

PavleJanuary 8, 2017 at 10:28 pmomg , this is so helpful , i cant describe it in words but u made my a level maths grade much much better