Question
Find values of $x$ for which $\left|\begin{array}{ll}3 & x \\ x & 1\end{array}\right|=\left|\begin{array}{ll}3 & 2 \\ 4 & 1\end{array}\right|$.
$3 - {x^2} = 3 - 8$
$ - {x^2} = - 8$
$x = \pm \sqrt 8 $
$x = \pm 2\sqrt 2 $
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$\text{X}$
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$0$
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$1$
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$2$
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$3$
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$\text{P}(\text{X})$
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$\text{k}$
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$\frac{\text{k}}{2}$
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$\frac{\text{k}}{4}$
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$\frac{\text{k}}{8}$
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