factorise : a²/ b² + 2 + b²/a².
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Answer:
Answer
We know the identity a
2
−b
2
=(a+b)(a−b)
Using the above identity, the given expressiona
2
−b
2
−a+b can be factorised as follows:
a
2
−b
2
−a+b=[(a+b)(a−b)]−1(a−b)=(a−b)(a+b−1)
Hence, a
2
−b
2
−a+b=(a−b)(a+b−1)
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