What is the value of root for $x^{2} + 11 x + 30 = 0$ ?

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Solution

$x^{2} + 11 x + 30 = 0 x^{2} + 5 x + 6 x + 30 = 0 x (x + 5) + 6 (x + 5) = 0 (x + 5) (x + 6) = 0 x = - 5, - 6$

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