Question 119211
{{{256x^2 = 36}}} Start with the given equation



{{{x^2 = 36/256}}} Divide both sides by 256



{{{x=sqrt(36/256)}}} Take the square root of both sides. I can't type in the plus/minus symbol, but just remember that there's a negative solution as well.



{{{x=sqrt(36)/sqrt(256)}}} Break up the square root




{{{x=(6)/sqrt(256)}}} Simplify {{{sqrt(36)}}} to get {{{6}}} 



{{{x=(6)/(16)}}} Simplify {{{sqrt(256)}}} to get {{{16}}} 




{{{x=3/8}}} Reduce



Remember, there's a negative portion as well. So the solution is 


{{{x=3/8}}} or {{{x=-3/8}}}


So the answer is A)