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\lhead{\textit{NOM: .............................................................   PrŽnom: .....................................................}}\lfoot{\textit{PremiŹre STI}}
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\begin{center}{\huge{Test nˇ4b}}\end{center}


RŽsoudre les Žquations suivantes:

\vspace{0.5cm}

$x^2+6x-16=0$

\vspace{5cm}

$x^2-8x+16=0$

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$7x^2+6x+5=0$

\vspace{5cm}


$\displaystyle \frac{5x}{2x-1}-\frac{4}{3x-2}=1$

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