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#1 2015-07-25 04:00:28

RandomPieKevin
Member
Registered: 2015-07-02
Posts: 29

Algebra Question

Let

. Find the constant
such that 
for all real numbers
.

Can someone help me solve this? I would like some help in how to solve it and what direction I should start. Thanks.

Last edited by RandomPieKevin (2015-07-27 05:33:00)

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#2 2015-07-25 04:40:08

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

Re: Algebra Question

Hi;

I would try:

Subtract f(x) from both sides.

Now solve for k...


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 2015-07-27 05:35:29

RandomPieKevin
Member
Registered: 2015-07-02
Posts: 29

Re: Algebra Question

How would we factor

?

Last edited by RandomPieKevin (2015-07-27 05:50:32)

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#4 2015-07-27 06:54:43

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

Re: Algebra Question

You could use the quadratic formula.


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 2015-07-27 08:58:03

RandomPieKevin
Member
Registered: 2015-07-02
Posts: 29

Re: Algebra Question

Ahhhh, yes. I didn't think of that. However, I'm not sure what the values should be. How do we transfer

into
?

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#6 2015-07-27 09:57:00

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

Re: Algebra Question

a = 3

b = -6k

c = 4k


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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#7 2015-07-28 05:19:52

RandomPieKevin
Member
Registered: 2015-07-02
Posts: 29

Re: Algebra Question

deleted

Last edited by RandomPieKevin (2015-08-16 07:20:48)

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#8 2015-07-28 05:34:04

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

Re: Algebra Question

Hi;

4 / 3 is correct.

I wrote f(x-k) instead of f(k-x) in post #2, sorry for the confusion.


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.

Offline

#9 2015-07-28 06:24:24

RandomPieKevin
Member
Registered: 2015-07-02
Posts: 29

Re: Algebra Question

Yup! smile

***This topic is now resolved.***

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