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प्रश्न
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
x4 – 1
बेरीज
उत्तर
We have,
x4 – 1 = (x2)2 – 1
= (x2 + 1)(x2 – 1)
= (x2 + 1)(x + 1)(x – 1)
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 7: Algebraic Expression, Identities and Factorisation - Exercise [पृष्ठ २३५]
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