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प्रश्न
If a = 1, b = 8 and c = 15, then find the value of `"b"^2 - 4"ac"`
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उत्तर
a = 1, b = 8 and c = 15
`"b"^2 - 4"ac"` = `8^2 - 4(1)(15)`
= 64 - 60
= 4
`"b"^2 - 4"ac"` = 4
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