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प्रश्न
Solve :
(x+5)(x-5)=24
उत्तर
Given: (x+5)(x-5)=24
`=> x^2 - 5^2 = 24` .............since (a - b) (a + b) = a2 - b2
`=> x^2 - 25 = 24`
`=> x^2 = 49`
`=> x = ± 7`
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