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प्रश्न
Express each of the following as the difference of two squares:
(x2 + 2x - 3) (x2 - 2x + 3)
योग
उत्तर
(x2 + 2x - 3) (x2 - 2x + 3)
= [x2 + (2x - 3)][x2 - (2x - 3)]
= x2 - (2x - 3)2
= x4 - (2x - 3)2.
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Method of Factorisation : Difference of Two Squares
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