Question
$$2000 = 854x^2-1426x+1330$$
Answer
$$ \begin{matrix}x_1 = \dfrac{ 713 }{ 854 }-\dfrac{ 3 \sqrt{ 120061}}{ 854 } & x_2 = \dfrac{ 713 }{ 854 }+\dfrac{ 3 \sqrt{ 120061}}{ 854 } \\[1 em] \end{matrix} $$
Explanation
$$ \begin{aligned} 2000 &= 854x^2-1426x+1330&& \text{move all terms to the left hand side } \\[1 em]2000-854x^2+1426x-1330 &= 0&& \text{simplify left side} \\[1 em]-854x^2+1426x+670 &= 0&& \\[1 em] \end{aligned} $$
$ -854x^{2}+1426x+670 = 0 $ is a quadratic equation.
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