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Write the equation $x^2 + 4y^2 + 4x - 16y + 4 = 0$ in standard form: $\dfrac{(x-h)^2}{a^2} + \dfrac{(y-k)^2}{b^2} = 1$
$h=$ , $k=$ , $a^2=$ , $b^2=$

Graph the equation.

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