\(16x^2-1=0 2\)
\(16x^2-1=0 2:x\)
\(16x^2=1\) \(|Add \ 1 \ to \ both \ sides|\)
\(x^2= \dfrac{1}{16}\) \(|Divide \ both \ sides \ by \ 16|\)
\(x^2= \sqrt{\dfrac{ \sqrt{1}}{ \sqrt{16}}}\) \(|Take \ the \ square \ root \ of \ both \ sides|\)
\(x= \dfrac{1}{4}\)