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## #1 2013-07-04 11:03:57

EbenezerSon
Member
Registered: 2013-07-04
Posts: 551

### Algebraic problem.

Hello sir, please assist me to solve these algebra.

x+x+x2-x2.  please the two x are squared, I cannot locate them(the squares) in this forum in order to apply them  conveniently on them.

I know only one thing - that is that I know nothing

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## #2 2013-07-04 13:06:13

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: Algebraic problem.

Hi EbenezerSon;

Welcome to the forum.

This looks like what you want done:

x + x = 2x

2x + x^2 = 2x + x^2

Now x^2 - x^2 = 0.

2x + 0 = 2x

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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## #3 2013-07-05 03:57:54

EbenezerSon
Member
Registered: 2013-07-04
Posts: 551

### Re: Algebraic problem.

Thank you sir, God bless, but please one more problem from algebra.
1. (h^2 - h^2) -p(h + h).

2. X^2 + X^2 + X^2 - Y^2

Please, where can I use the mathematical items, like the (square), (plus symbol) and the others in this forum, as  you have used them nicely above.

Thanks.

I know only one thing - that is that I know nothing

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## #4 2013-07-05 04:32:32

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: Algebraic problem.

You can use latex, that is what I am using. It is all done by a site. Take a look here.

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

1) (h^2 - h^2) -p(h + h)

h^2 - h^2 is 0

0  - p(h + h)

Can you do the next step?

2)  X^2 + X^2 + X^2 - Y^2

X^2 + X^2 + X^2  is 3X^2

3X^2 - Y^2 we can not simplfy any further so you are done.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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## #5 2013-07-05 10:38:38

EbenezerSon
Member
Registered: 2013-07-04
Posts: 551

### Re: Algebraic problem.

0-p(h + h)
= -hp - hp.

I know only one thing - that is that I know nothing

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## #6 2013-07-05 10:44:02

EbenezerSon
Member
Registered: 2013-07-04
Posts: 551

### Re: Algebraic problem.

But sir, the book in which I am learning this from has given me a different answer altogether.

It is saying, though an algebra but this type of question is called "difference of two squares".

I would provide his procedure here, which I could not quite comprehend some aspects of his procedure.

I really appreciate your enormous assistance.

Thanks.

Last edited by EbenezerSon (2013-07-05 10:50:17)

I know only one thing - that is that I know nothing

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## #7 2013-07-05 14:08:08

ShivamS
Member
Registered: 2011-02-07
Posts: 3,648

### Re: Algebraic problem.

Hi, if you want to simplify  0-p (h+h), it would be ph + ph which  is 2ph. Secondly, difference of two squares implies that you need to factor these, not just simplify. To do that, you must use the identity (a^2)-(a^2) equals (a+b)(a-b).

Last edited by Shivamcoder3013 (2013-07-05 14:09:40)

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## #8 2013-07-05 14:21:23

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: Algebraic problem.

But how can you factor them?

1) (h^2 - h^2) -p(h + h)

h^2 - h^2 = 0

There is no difference of 2 squares.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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## #9 2013-07-05 23:48:40

{7/3}
Member
Registered: 2013-02-11
Posts: 210

### Re: Algebraic problem.

Ebenezerson I think u are posting wrong question

There are 10 kinds of people in the world,people who understand binary and people who don't.

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## #10 2013-07-08 02:12:39

EbenezerSon
Member
Registered: 2013-07-04
Posts: 551

### Re: Algebraic problem.

Regarding the problem above I think the member omitted the 'negative sign'.

The following is how I see it;

0-p(h+h) = (-ph - ph)

= -2ph , What do you say with my solution? The 'negative sign' was affecting the P.

I know only one thing - that is that I know nothing

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## #11 2013-07-08 02:20:46

EbenezerSon
Member
Registered: 2013-07-04
Posts: 551

### Re: Algebraic problem.

(h^2  -  h^2) -p(h+h)

= (h - h)(h + h) -p(h+h)

= (h + h)(h - h - p) . The final solution provided by the book.

Last edited by EbenezerSon (2013-07-08 02:23:57)

I know only one thing - that is that I know nothing

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## #12 2013-07-08 02:26:09

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: Algebraic problem.

Hi;

That is an extremely weird answer they give.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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## #13 2013-07-08 02:33:55

EbenezerSon
Member
Registered: 2013-07-04
Posts: 551

### Re: Algebraic problem.

bobbym wrote:

Hi;

That is an extremely weird answer they give.

Sir, forgive me I should have provided how the question should be solved. the question says:

(The factorize the expression completely). I think it should be the answer if we are to factorize it,  I have now comprehended it.  And I can explain.

What do you say.

Last edited by EbenezerSon (2013-07-08 02:35:24)

I know only one thing - that is that I know nothing

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## #14 2013-07-08 02:41:06

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: Algebraic problem.

Hi;

If you now understand what they did then that is okay with me.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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