$$ \begin{aligned} 27x^2-3x-10^6 &= 0&& \text{simplify left side} \\[1 em]27x^2-3x-1000000 &= 0&& \\[1 em] \end{aligned} $$
$ 27x^{2}-3x-1000000 = 0 $ is a quadratic equation.
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