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प्रश्न
Factorise the following by the difference of two squares:
(x - 2y)2 -z2
योग
उत्तर
(x - 2y)2 - z2
= (x - 2y)2 - (z)2
= (x - 2y - z)(x - 2y + z).
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Method of Factorisation : Difference of Two Squares
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