Please can someone help with this problem: solve Now we were told to let y=2 but I can't figure out where the y is coming from? Is it just as a function of x?

Thanks in advance for your help!

Kris :)

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- Mar 9th 2013, 11:39 AMKrisltonLog question
Please can someone help with this problem: solve Now we were told to let y=2 but I can't figure out where the y is coming from? Is it just as a function of x?

Thanks in advance for your help!

Kris :) - Mar 9th 2013, 11:55 AMShakarriRe: Log question
You might have misread your book and it is telling you to make the substitution y=2

^{x}

If not, do that substitution anyway and solve for y, after you have solved for y then finish by using it to find x

Hint: 2^{2x+1}=2(2^{x})^{2 }Edit: Beat plato by 1 minute :P - Mar 9th 2013, 11:56 AMPlatoRe: Log question
- Mar 9th 2013, 12:02 PMKrisltonRe: Log question
- Mar 9th 2013, 12:15 PMKrisltonRe: Log question
- Mar 9th 2013, 02:17 PMSorobanRe: Log question
Hello, Krislton!

Evidently you don't understand the hint or the suggestions.

I'll give you a walk-through . . .

Quote:

We have: .

. . . . . . . .

. . . . . . . .

Let

Factor: . . . .

And we have: .

Back-substitute: .

- Mar 9th 2013, 02:53 PMKrisltonRe: Log question