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#501 2014-09-10 23:49:20
- EbenezerSon
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- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
What do you say of the books' answer it has x-7 as it answer. What do you?
I know only one thing - that is that I know nothing
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#502 2014-09-11 02:29:54
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
You try to prove you answer in another way.
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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#503 2014-09-11 21:51:04
- EbenezerSon
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Re: Simplify the following:
bobbym wrote:You try to prove you answer in another way.
Please - what do you mean? - I don't understand.
I know only one thing - that is that I know nothing
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#504 2014-09-11 23:05:29
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
3 - (x - 4 )
You say it is 7 - x and the book says it is x - 7.
Try plugging in a number for x and see what happens.
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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#505 2014-09-12 20:42:55
- EbenezerSon
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- Posts: 554
Re: Simplify the following:
I said I had -x+7, and the book has x-7 and I don't know which one is correct.
I know only one thing - that is that I know nothing
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#506 2014-09-13 01:19:48
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
What happens if you plug in 5 for x?
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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#507 2014-09-13 18:54:11
- EbenezerSon
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- Posts: 554
Re: Simplify the following:
It gives 2
I know only one thing - that is that I know nothing
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#508 2014-09-13 20:19:07
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
When you plug in x = 5 into 3 - (x - 4 ) you get?
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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#509 2014-09-14 00:25:28
- EbenezerSon
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- Posts: 554
Re: Simplify the following:
It gives (-6)
When I plug 5 into 3 - (x + 4 ) with a calculator
Last edited by EbenezerSon (2014-09-14 00:33:44)
I know only one thing - that is that I know nothing
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#510 2014-09-14 00:46:49
- EbenezerSon
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- Posts: 554
Re: Simplify the following:
Hi Bobbym;
I have had hard time solving this and I need your help;
(1) 3^(x+1) (3^(3+x) - 3) = 0
This is it
Last edited by EbenezerSon (2014-09-14 04:14:52)
I know only one thing - that is that I know nothing
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#511 2014-09-14 01:46:39
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
Hold on, we are still doing the other problem.
You used the wrong expression.
When I plug 5 into 3 - (x + 4 ) with a calculator
This is important so please work this out.
When you plug in x = 5 into 3 - (x - 4 ) you get?
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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#512 2014-09-14 02:10:14
- EbenezerSon
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- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
Ok,
3 - ( x - 4)
3 - (5 - 4)
3 - (1)
3 - 1 = 2
I know only one thing - that is that I know nothing
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#513 2014-09-14 02:11:57
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
Okay now the book answer was x - 7 and yours was 7 - x.
Plug in x = 5 in x - 7
Plug in x = 5 in 7 - x
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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#514 2014-09-14 02:15:16
- EbenezerSon
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- Posts: 554
Re: Simplify the following:
5 - 7 = -2
7 - 5 = 2
I know only one thing - that is that I know nothing
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#515 2014-09-14 02:18:50
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
So which one is right?
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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#516 2014-09-14 02:25:03
- EbenezerSon
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- Posts: 554
Re: Simplify the following:
The x - 7 is right
I know only one thing - that is that I know nothing
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#517 2014-09-14 02:26:34
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
Which was your answer, right?
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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#518 2014-09-14 02:32:59
- EbenezerSon
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- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
My answer was (-x+7) but all the same it gives 2 when 5 is plugged in
I know only one thing - that is that I know nothing
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#519 2014-09-14 02:35:27
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
Sorry, I picked the wrong one but that is how you can verify that your work is correct sometimes.
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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#520 2014-09-14 02:46:23
- EbenezerSon
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- Posts: 554
Re: Simplify the following:
I am particularly worried that I had -x+7 wheras the book had x-7
Last edited by EbenezerSon (2014-09-14 02:54:48)
I know only one thing - that is that I know nothing
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#521 2014-09-14 02:49:04
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
Hmmm, when you plug in x = 5 in the book answer do you get the same as when you plug in x = 5 in 3 - (x - 4 )
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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#522 2014-09-14 02:57:36
- EbenezerSon
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- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
Sorry! the had 7 - x rather. And still I am worried why it had that
I know only one thing - that is that I know nothing
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#523 2014-09-14 02:58:39
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
Does it agree with 3 - (x - 4 ) when you plug some numbers in?
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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#524 2014-09-14 03:07:07
- EbenezerSon
- Member
- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
Yes
I know only one thing - that is that I know nothing
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#525 2014-09-14 03:08:23
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
The book answer agrees with 3 - (x - 4 ) ?
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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