Solve for x.

log^2(x - 6) + log^2(x - 4) = log^2 x can someone help?

Question

Solve for x.

log^2(x - 6) + log^2(x - 4) = log^2 x can someone help?

anonymous · Answer

lawl maybe? :)

anonymous · Answer

just need to make sure we know what we're doing :)
$$\large \log_2(x-6) + \log_2(x-4) = \log_2 x$$ is this it?

anonymous · Answer

yes lol

anonymous · Answer

x = 3, 1

x = 3

no solution those are my answer choices

anonymous · Answer

if you have answer choices, I'd have thought this was easy XD

the quickest way to do that is just to substitute~

anonymous · Answer

what do i sub

anonymous · Answer

oh lol

anonymous · Answer

3 and 1. See which works.

anonymous · Answer

i typed it in but idk what im doing really

anonymous · Answer

that's a problem :D
Show me what you did, then~

anonymous · Answer

i typed in log(2)(3-6)+log(2)(1-4)

anonymous · Answer

no wonder. are the logs squared or something?

anonymous · Answer

the picture you have up there is the exact problem but idk how to type it in

anonymous · Answer

so none of the answer choices work?

anonymous · Answer

im not sure if i typed it in right and idk if it works or not bc i really dont know what im looking at

anonymous · Answer

@PeterPan  you there?

anonymous · Answer

yup.
Try it again and be sure.

anonymous · Answer

if it says nonreal answer that means no solution right?

anonymous · Answer

yup

anonymous · Answer

can you check my answers? im taking a pre test and i wanna do good

anonymous · Answer

sure, why not :)

anonymous · Answer

Solve the logarithmic equation. Round answers to the nearest hundredth.

6 + ln x = 8 
answer choices are 

i choose the first one

x ≈ 7.39

x ≈ .69

x ≈ 2

anonymous · Answer

@PeterPan  lol sorry if im annoying you but im trying to do really good on this pre test

anonymous · Answer

I guess the first is the best choice?

anonymous · Answer

do you know what this would be|dw:1403619922550:dw|

anonymous · Answer

That's what you have calculators for?
sorry, there is no way to figure this out without one ^.^

anonymous · Answer

idk how to type it in my calculator :( i have to solve for x

anonymous · Answer

Well use this fact:
$$\Large \ln x^p = p\cdot \ln x$$

anonymous · Answer

im still confused lol

anonymous · Answer

i feel like this one is easy lol i feel like im stupid haha

anonymous · Answer

square root is the same as raising to a power of 1/2

anonymous · Answer

ok im starting to get it so whats the answer?

anonymous · Answer

lol i really need the answer its my last question

anonymous · Answer

i made a 75... 5 points away from skippoing an entire lesson