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Factorisation Using Algebraic Identities

Question 89 v...

Question

Question 89 (vii)

Factorise the following, using the identity, $a^{2} + 2 a b + b^{2} = (a + b)^{2}$

$a^{2} x^{2} + 2 a b x + b^{2}$

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Solution

We have, $a^{2} x^{2} + 2 a b x + b^{2}$
$= (a x)^{2} + 2. a x . b + b^{2} = (a x + b)^{2} = (a x + b) (a x + b)$

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Factorisation Using Algebraic Identities

Standard VIII Mathematics

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