Resposta:
[tex]2x^{2} =10^{2}.10^{-2} \\ \\ 2x^{2} =10^{2+(-2)}\\ \\ 2x^{2} =10^{0}\\ \\ 2x^{2} =1\\ \\ x^{2} =\frac{1}{2}\\ \\ x=\sqrt{\frac{1}{2} }[/tex]
