Help with this?

Question

Help with this?

lifeisadangerousgame · Answer

attachment

anonymous · Answer

factor 625

lifeisadangerousgame · Answer

5^4? 
I think I have teh answer
Is it 5xsqrtx?

anonymous · Answer

close, 5x 4thrt(x) do you see why?

lifeisadangerousgame · Answer

not really the sqrt4 cancels out the exponent 4 for 5^4 and x^4 so all that's left is 5 * x * sqrtx?

lifeisadangerousgame · Answer

OHH 4th root! Right right because its not a sqrt

anonymous · Answer

$$\sqrt[4]{x^5}=x \sqrt[4]{x}$$

lifeisadangerousgame · Answer

so its 5x4thrt(x) :3

anonymous · Answer

yes

lifeisadangerousgame · Answer

Thank you Peter!:D

anonymous · Answer

you're welcome. any other questions?

lifeisadangerousgame · Answer

Yes actually! I have one more, I can get this stuff its just that sometimes I can't connect my next step to the first

lifeisadangerousgame · Answer

So I switched it around so I had 7thrt128^4 . 128 isn't 7throotable (not a word I know xD) so I'm not sure what I should do

anonymous · Answer

raise 128 to the 4 first

anonymous · Answer

then try to 7throot it

lifeisadangerousgame · Answer

Oh wait, if I use the exponent first I get 268435456 which is 7throot of 16

anonymous · Answer

(that word looks so strange...)

lifeisadangerousgame · Answer

(it does o.o) 
When I talk it out it makes sense xD

anonymous · Answer

when you have that kind of problem, first try to simplify the fraction. if that doesn't work, apply the exponentiation then the somethingthroot

lifeisadangerousgame · Answer

Makes sense thank you!:D

anonymous · Answer

I didn't do anything, you figured it out yourself.

anonymous · Answer

anything else?

lifeisadangerousgame · Answer

Yes! Just one more thing then I'm going to attempt the last two problems and if I can't do them I'll come back.. (Do you want me to make another question so you can get your deserved medal?)

anonymous · Answer

I don't care about medals

anonymous · Answer

what's the point? they're just 1s and 0s

lifeisadangerousgame · Answer

well, someone tried to explain it to me and I couldn't understand what they were doing http://openstudy.com/users/lifeisadangerousgame#/updates/5269b294e4b040e33d2fb18a With the FOIL, doesn't the answer come out to be x^2 - 6x?

anonymous · Answer

I don't see a way to simplify that, except maybe by giving the denominator (the whole expression, not the individual pieces) an exponent of -1 and moving it up to the numerator

lifeisadangerousgame · Answer

because the x gets multiplied by another x so that makes it x^2 but because its been sqrtd it makes it just x again so sqrt36x^2 becomes 6x?

anonymous · Answer

|dw:1382663470722:dw|

anonymous · Answer

maybe try this... see where it goes...
|dw:1382663532288:dw|