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Factorisation Using Algebraic Identities

Question 91 i...

Question

Question 91 (i)

Factorise the following:

$x^{2} + 15 x + 26$

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Solution

We have, $x^{2} + 15 x + 26$
$= x^{2} + 2 x + 13 x + 2 \times 13 = x (x + 2) + 13 (x + 2) = (x + 2) (x + 13)$

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Factorisation Using Algebraic Identities

Standard VIII Mathematics

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