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प्रश्न
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`x^2/25 - 625`
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उत्तर
We have,
`x^2/25 - 625 = (x/5)^2 - (25)^2`
= `(x/5 - 25)(x/5 + 25)`
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