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NCRT maths exercise9.4 (X+7y) (7x-y)
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NCRT maths exercise9.4
(X+7y) (7x-y)

User Shivesh Suman
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(X+7y) (7X-y) 7x^2 - xy + 49xy -7y^2 7x^2 + 48xy - 7y^2
User Rngbus
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