Hi all,

This question appeared in a logarithm chapter.

(√(4+√15))^x + (√(4-√15))^x = 8

i simply can't crack it...

thanks,

Raz.

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- Oct 1st 2012, 06:46 AMrazidanhelp please - powers/log question
Hi all,

This question appeared in a logarithm chapter.

(√(4+√15))^x + (√(4-√15))^x = 8

i simply can't crack it...

thanks,

Raz. - Oct 1st 2012, 07:03 AMPlatoRe: help please - powers/log question
- Oct 1st 2012, 07:45 AMrazidanRe: help please - powers/log question
Can I see the full solution please?

- Oct 1st 2012, 07:59 AMPlatoRe: help please - powers/log question
- Oct 1st 2012, 08:27 AMrazidanRe: help please - powers/log question
Really? I would guess they want me to somehow translate it into a logarithmic equation, that's the whole purpose of that chapter...

- Oct 1st 2012, 08:36 AMPlatoRe: help please - powers/log question
- Oct 1st 2012, 02:16 PMrazidanRe: help please - powers/log question
Attachment 25000

number 4.30 - Oct 1st 2012, 02:41 PMPlatoRe: help please - powers/log question