Question 92 (xxiv) Factorise the following using the identity a2−b2= – InterviewSolution

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Question 92 (xxiv) Factorise the following using the identity a2−b2=(a+b)(a−b). y4−81

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Question 92 (xxiv)

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

$y^{4} - 81$

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