Question 1032320
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I can't figure this one out.  Please help. Thanks. 

What is the solution(s) to 5x^2 - 16 = 0?  I get an answer but I am not sure.  

thank you. 
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The answer is x = +/- {{{4/sqrt(5)}}}  or  x = +/- {{{(4*sqrt(5))/5}}}.