As raízes da equação de segundo grau são :
[tex]{{\boxed{{\boxed{\Large{\boxed{\rm { x=\sqrt{2} \: }}}}}}}}[/tex]
[tex]{{\boxed{{\boxed{\Large{\boxed{\rm { x= -\sqrt{2} \: }}}}}}}}[/tex]
Montando as raízes :
[tex]4\times4-9x^{2} +2=0\\\\\\16-9x^{2} +2=0\\\\\\18-9x^{2} =0\\\\\\-9x^{2} =-18\\\\\\x^{2} =\dfrac{-18}{-9} \\\\\\x^{2} =2\\\\\\x=\sqrt{2} \\x=-\sqrt{2}[/tex]
[tex]{{\boxed{{\boxed{\blue{\boxed{\Large{\rm { ATT: Miguel \: }}}}}}}}}[/tex]
