Question
$$41800000-760000000x-1520000000x^2 = 0$$
Answer
$$ \begin{matrix}x_1 = -\dfrac{ 1 }{ 2 }-\dfrac{\sqrt{ 167200001 }}{ 2 } & x_2 = -\dfrac{ 1 }{ 2 }+\dfrac{\sqrt{ 167200001 }}{ 2 } \\[1 em] \end{matrix} $$
Explanation
$$ \begin{aligned} 41800000-760000000x-1520000000x^2 &= 0&& \text{simplify left side} \\[1 em]-x^2-x+41800000 &= 0&& \\[1 em] \end{aligned} $$
$ -x^{2}-x+41800000 = 0 $ is a quadratic equation.
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