Question

9x2-8x+8=0
alguém me ajudar

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Answer 1

$\Large\boxed{\begin{array}{l}\sf9x^2-8x+8=0\\\sf a=9~~b=-8~~c=8\\\sf\Delta=b^2-4ac\\\sf\Delta=(-8)^2-4\cdot9\cdot8\\\sf\Delta=64-288\\\sf\Delta=-224\\\sf como~\Delta < 0~a~soluc_{\!\!,}\tilde ao~\acute e~vazia\\\sf portanto\\\sf S=\bigg\{~~\bigg\}\end{array}}$