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hogie Group TitleBest ResponseYou've already chosen the best response.0
\[\sqrt{4a^2}\]
 one year ago

hogie Group TitleBest ResponseYou've already chosen the best response.0
dw:1366344988992:dw
 one year ago

hogie Group TitleBest ResponseYou've already chosen the best response.0
What do i do with the a^2
 one year ago

hogie Group TitleBest ResponseYou've already chosen the best response.0
dw:1366345074437:dw
 one year ago

dave0616 Group TitleBest ResponseYou've already chosen the best response.1
a is squared, and the opposite of a square root is to the second power. because this expression can also be written as (4a^2)^1/2. so if you take 2 and multiply it by a half, you get 1. so the answer is 2a
 one year ago

hogie Group TitleBest ResponseYou've already chosen the best response.0
dw:1366345329452:dw
 one year ago

dave0616 Group TitleBest ResponseYou've already chosen the best response.1
same principle is used. (4x^4)^1/2, 4*(1/2)=2= 2x^2
 one year ago

hogie Group TitleBest ResponseYou've already chosen the best response.0
dw:1366345558930:dw
 one year ago

hogie Group TitleBest ResponseYou've already chosen the best response.0
dw:1366345964027:dw
 one year ago

dave0616 Group TitleBest ResponseYou've already chosen the best response.1
i wanna help you through this one. what is x*x*x*x?
 one year ago

hogie Group TitleBest ResponseYou've already chosen the best response.0
dw:1366346145214:dw
 one year ago

hogie Group TitleBest ResponseYou've already chosen the best response.0
you can only pull two x's out right?
 one year ago

dave0616 Group TitleBest ResponseYou've already chosen the best response.1
that is correct. so now you have sqrt(x^4). well in a way yes, but lets go ahead and use the formula we had.: (x^4)^1/2 4*(1/2)=2
 one year ago

dave0616 Group TitleBest ResponseYou've already chosen the best response.1
so you have x^2
 one year ago

hogie Group TitleBest ResponseYou've already chosen the best response.0
dw:1366346262015:dw
 one year ago

hogie Group TitleBest ResponseYou've already chosen the best response.0
That would be the answer? ^^^
 one year ago

dave0616 Group TitleBest ResponseYou've already chosen the best response.1
nope, because you origonally had :\[\sqrt{x^{4}}\] and you took the square root of that to get x^2
 one year ago

hogie Group TitleBest ResponseYou've already chosen the best response.0
So what would it be? Just x^2
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
\(\large \sqrt{9x^4}= 3x^2\) is correct.
 one year ago

dave0616 Group TitleBest ResponseYou've already chosen the best response.1
@hartnn and @hogie i guess i am confused as to where the sqrt(9x^4) came from, because i dont see that any where, thought 3x^2 would be correct for that
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
dw:1366347228041:dw
 one year ago

dave0616 Group TitleBest ResponseYou've already chosen the best response.1
ohhhh i mistook that as a four, im sorry, then yes 3x^2 would be correct
 one year ago
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