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Solving a Quadratic Equation by Factorization Method

Factorise the...

Question

Factorise the following expression-
$a^{2} + 10 a + 25$

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Solution

$a^{2} + 10 a + 25$
$= a^{2} + 5 a + 5 a + 25$
$= a (a + 5) + 5 (a + 5)$
$= (a + 5) (a + 5)$

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