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प्रश्न
Reduce the following rational expression to its lowest form
`(x^2 - 1)/(x^2 + x)`
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उत्तर
`(x^2 - 1)/(x^2 + x)`
= `((x + 1)(x - 1))/(x(x + 1))`
= `(x - 1)/x`
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