Solve the quadratic equation $n^{2} - 36 = 0$ .

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Solution

Given equation is $n^{2} - 36 = 0$
$\Rightarrow {(n)}^{2} - {(6)}^{2} = 0$
$\Rightarrow (n + 6) (n - 6) = 0$
$\Rightarrow n + 6 = 0$ or $n - 6 = 0$
$\Rightarrow n = - 6$ or $n = 6$
Hence, $n = - 6$ , $n = 6$ are the roots of the given quadratic equation.

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