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worty [1.4K]
4 years ago
15

The sum of a number and its reciprocal is 13/6. find the number

Mathematics
1 answer:
Anna71 [15]4 years ago
3 0
x + \frac{1}{x} = \frac{13}{6} \text{, x} \neq 0
x^{2} - \frac{13}{6}x + 1 = 0
6x^{2} - 13x + 6 = 0
6x^{2} -9x - 4x + 6 = 0
3x(2x - 3) - 2(2x - 3) = 0
(3x - 2)(2x - 3) = 0

So, the numbers are: 3/2 and 2/3
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