Question
$$6n^2+6 = 60$$
Answer
$$ \begin{matrix}n_1 = 3 & n_2 = -3 \\[1 em] \end{matrix} $$
Explanation
$$ \begin{aligned} 6n^2+6 &= 60&& \text{move all terms to the left hand side } \\[1 em]6n^2+6-60 &= 0&& \text{simplify left side} \\[1 em]6n^2-54 &= 0&& \\[1 em] \end{aligned} $$
$ 6x^{2}-54 = 0 $ is a quadratic equation.
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