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Zeroes of a Polynomial

Factorise 3...

Question

Factorise $3 a^{2} + 24 a + 36$ .

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Solution

Given equation,
$3 a^{2} + 24 a + 36$
$\begin{matrix} 3 a^{2} + 18 a + 6 a + 36 3 a (a + 6) + 6 (a + 6) (3 a + 6) (a + 6) \end{matrix}$
Hence,
We get $a = - 2, - 6$

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