Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

## #1 2013-11-29 08:15:05

karategirl1925
Novice

Offline

### click me! click me!

Heyy ~ I'm Tina
I'm learning stuff at about GCSE - A level standard, and I'm currently working on trying to add/subtract numbers faster mentally and the binomial theorem as well as factorisation problems, freakishly hard, etc.  yeah, so if anyone has any suggestions or tips on simplifying square rooted numbers inside of square rooted numbers and factorising square roots, I'd be happy to know -- I'm in year 8 (I know, I know) and I'm going to take the IMC from the UKMT challenges next year so if anyone has any tips on that then great.
Good byeh ~

If you're looking for a friend then I am a good friend.  Read this, let's be friends together!  I don't mind how good or bad at math you are!!!!

## #2 2013-11-29 13:24:14

bobbym

Online

### Re: click me! click me!

Hi karategirl1925;

Welcome to the forum.

In mathematics, you don't understand things. You just get used to them.
Some cause happiness wherever they go; others, whenever they go.
If you can not overcome with talent...overcome with effort.

## #3 2013-11-29 18:54:49

bob bundy
Moderator

Offline

### Re: click me! click me!

hi Tina,

Welcome to the forum.

so if anyone has any suggestions or tips on simplifying square rooted numbers inside of square rooted numbers and factorising square roots,

I'm not quite sure what you're after here.  Would you give us some examples please?

Bob

You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

## #4 2013-11-30 04:15:33

karategirl1925
Novice

Offline

### Re: click me! click me!

Hi Bob ~
So what I mean is a bit hard to express because we can't show stuff like square roots..(or can we?)
e.g. √17+12√2 is one I've been trying to simplify, and the seventeen plus twelve square rooted two is all inside one massive square root, not seventeen squared etc.
help?
thanks

## #5 2013-11-30 04:33:23

bobbym

Online

### Re: click me! click me!

Hi;

This is the problem?

In mathematics, you don't understand things. You just get used to them.
Some cause happiness wherever they go; others, whenever they go.
If you can not overcome with talent...overcome with effort.

## #6 2013-11-30 14:53:07

anonimnystefy
Real Member

Offline

### Re: click me! click me!

Hi Tina

Welcome to the forum!

Hi bobbym

I'd say this is:

Last edited by anonimnystefy (2013-11-30 15:42:45)

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

## #7 2013-11-30 15:27:16

bobbym

Online

### Re: click me! click me!

Have you figured what numbers always make this simplification possible?

In mathematics, you don't understand things. You just get used to them.
Some cause happiness wherever they go; others, whenever they go.
If you can not overcome with talent...overcome with effort.

## #8 2013-11-30 15:44:22

anonimnystefy
Real Member

Offline

### Re: click me! click me!

No, but I remember the formula:

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

## #9 2013-11-30 20:22:04

bob bundy
Moderator

Offline

### Re: click me! click me!

hi Tina,

Sometimes these can be simplified and sometimes not.

You could try setting your expression equal to a + √b and then squaring to see what results.

To make mathematical expressions on the forum you need to use a code called Latex.

eg

#### Code:

$\sqrt{\sqrt{17}+12 \sqrt{2}}$

http://www.mathisfunforum.com/viewtopic.php?id=4397

http://latex.codecogs.com/editor.php

Bob

You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei