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

You are not logged in.

#51 2013-07-21 03:19:04

EbenezerSon
Member
Registered: 2013-07-04
Posts: 402

Re: Simplify the following:

Okay I would try and do thanks.


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

Offline

#52 2013-07-21 03:20:46

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,574

Re: Simplify the following:

Let me know how you do.

If you need it:


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

#53 2013-07-21 04:03:38

EbenezerSon
Member
Registered: 2013-07-04
Posts: 402

Re: Simplify the following:

I had: x^2-1/x^3 -2x^2 +x.

I dont understand  how you got -x^2 +1. As the numerator.

Please, let me know how you got it.
Thanks

Last edited by EbenezerSon (2013-07-21 09:28:37)


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

Offline

#54 2013-07-21 14:54:52

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,574

Re: Simplify the following:

Hi;

I did not get that as the numerator. I got x + 1 as the numerator. I just multiplied. Do you need help with that?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

#55 2013-07-22 04:15:08

EbenezerSon
Member
Registered: 2013-07-04
Posts: 402

Re: Simplify the following:

Yes,


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

Offline

#56 2013-07-22 04:17:49

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,574

Re: Simplify the following:

Do you know FOIL?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

#57 2013-07-22 04:26:54

EbenezerSon
Member
Registered: 2013-07-04
Posts: 402

Re: Simplify the following:

I havent heard nor seen that before.


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

Offline

#58 2013-07-22 04:29:03

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,574

Re: Simplify the following:

It is an acronym and it means First, Outer, Inner and Last. Want to try this one using it?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

#59 2013-07-22 04:36:18

EbenezerSon
Member
Registered: 2013-07-04
Posts: 402

Re: Simplify the following:

Yes, Sir.
I am ever ready!


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

Offline

#60 2013-07-22 04:47:00

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,574

Re: Simplify the following:

We have:

We use FOIL to multiply it.

F means First, so we take the first term of each one and multiply them.


What is the answer?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

#61 2013-07-22 05:11:05

EbenezerSon
Member
Registered: 2013-07-04
Posts: 402

Re: Simplify the following:

=x^2


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

Offline

#62 2013-07-22 05:16:27

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,574

Re: Simplify the following:

That is correct, hold on to that.

Now for O which means outer:

What do you get?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

#63 2013-07-22 05:33:39

EbenezerSon
Member
Registered: 2013-07-04
Posts: 402

Re: Simplify the following:

= -x^1


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

Offline

#64 2013-07-22 05:38:14

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,574

Re: Simplify the following:

That is correct, now hold on to that.

I, means inner:

What do you get?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

#65 2013-07-22 05:50:02

EbenezerSon
Member
Registered: 2013-07-04
Posts: 402

Re: Simplify the following:

=x^1


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

Offline

#66 2013-07-22 05:53:24

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,574

Re: Simplify the following:

That is correct a mundo!. Hold on to that.

We are almost done! L means last.

What do you get?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

#67 2013-07-22 06:03:02

EbenezerSon
Member
Registered: 2013-07-04
Posts: 402

Re: Simplify the following:

X^0 = 1.


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

Offline

#68 2013-07-22 06:07:11

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,574

Re: Simplify the following:

Wrong sign!


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

#69 2013-07-22 06:15:56

EbenezerSon
Member
Registered: 2013-07-04
Posts: 402

Re: Simplify the following:

Please, let me know I an wrong


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

Offline

#70 2013-07-22 06:18:31

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,574

Re: Simplify the following:

You added the exponents correctly but what about that - in front of the second term?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

#71 2013-07-22 06:35:09

EbenezerSon
Member
Registered: 2013-07-04
Posts: 402

Re: Simplify the following:

Errr okay, I see it should be -x^ 0= 1. Is that correct?


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

Offline

#72 2013-07-22 06:36:18

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,574

Re: Simplify the following:

Hi;

- x^0 = -1


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

#73 2013-07-22 06:39:19

EbenezerSon
Member
Registered: 2013-07-04
Posts: 402

Re: Simplify the following:

But sir, I think the negative sign is affecting the 'X' and not its power, please could you explain?

Last edited by EbenezerSon (2013-07-22 06:40:35)


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

Offline

#74 2013-07-22 06:41:29

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,574

Re: Simplify the following:

-(x^0) is - (1) which equals -1.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Offline

#75 2013-07-22 06:43:21

EbenezerSon
Member
Registered: 2013-07-04
Posts: 402

Re: Simplify the following:

Errr okay, I understand it now,  any number raising to the power zero is 1 therefore the 1 should take the sign of the x, Because is the x that makes the 1. I am right sir?


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

Offline

Board footer

Powered by FluxBB