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Question
Discuss the nature of the roots of the following equation: 3x2 – 7x + 8 = 0
Solution
3x2 – 7x + 8 = 0
Here a = 3, b = –7, c = 8
∴ D = b2 – 4ac
= (–7)2 – 4 x 3 x 8
= 49 – 96
= –47
∵ D < 0
∴ Roots are not real.
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