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2015-09-21T15:37:56+05:30

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X² - x - 1 = 0
a = 1, b = -1, c = -1

x = \frac{-b \pm \sqrt{b^2-4ac} }{2a}\\ \\ x = \frac{1 \pm \sqrt{1+4} }{2}\\ \\ x = \frac{1 \pm \sqrt{5} }{2}\\ \\ x = \frac{1 + \sqrt{5} }{2}\ \ \ \ and\ \ \ \ \frac{1 - \sqrt{5} }{2}
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yeah, there is only one number in the universe that is one greater than it's square. it has a name in mathematics... im asking what that is.
Then you should ask "there is only one number in the universe that is one greater than it's square. What is its name?"
sorry. il ask that then...
I don't know the answer to that... but (1+root5)/2 is called the golden ratio...
i asked it : http://brainly.in/question/198890