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प्रश्न
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
(a – b)2 – (b – c)2
उत्तर
We have,
(a – b)2 – (b – c)2 = (a – b + b – c)(a – b – b + c)(a – c)(a – 2b + c)
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