Math, asked by ram1971panigrahi, 10 months ago

factorise it by a method

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Answered by yogitajha05

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Answered by konrad509

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$25(a+b)^2-16(a-b)^2=\\(5(a+b)-4(a-b))(5(a+b)+4(a-b))=\\(5a+5b-4a+4b)(5a+5b+4a-4b)=\\(a+9b)(9a+b)$

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