Question

factorize 64a - 25b using identity (a-b)^2​

Answer 1

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• Factorise $64 {a}^{2} - 2 5{b}^{2}$

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$64 {a}^{2} - 25 {b}^{2}$

$= {(8a)}^{2} - {(5b)}^{2}$

$= (8a + 5b)(8a - 5b)$

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• $(8a + 5b)(8a - 5b)$