Write the following sets in roster form:
$G =$ The solution set of a equation $x^{2} + x - 2 = 0$

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Solution

Given equation is $x^{2} + x - 2 = 0$
$\Rightarrow (x - 1) (x + 2) = 0$
i.e, $= 1, - 2$
$∴ G = {1, - 2}$

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