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Factorisation Using Algebraic Identities

x Factorise t...

Question

Question 92 (x)

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

$49 x^{2} - 36 y^{2}$

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Solution

$49 x^{2} - 36 y^{2} = (7 x)^{2} - (6 y)^{2} = (7 x - 6 y) (7 x + 6 y)$

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Factorisation Using Algebraic Identities

Standard VIII Mathematics

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