Precalculus 11
posted by Kayla
Determine if the given value is a solution for each quadratic. Answer yes or no.
2x^23x(root 2)+2=0
I know the answer is yes but I don't know how to get to that answer.
Thanks a ton! :)
Kayla

bobpursley
roots:
x=(3*sqrt2+sqrt(1816))/4
so those are the values. 
Steve
Just to simplify a bit,
(3√2±√2)/4 = √2 or √2/2 
Kayla
So to find that I would need to go into decimals & leave exact form & then square my final answer to know that my answer was the root of 2?
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