Answers

2016-07-06T17:28:31+08:00
The number is 3. 9-3=6 since the square root of 9 is 3
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2016-07-06T17:29:18+08:00
Let the unknown number be x, therefore the equation isĀ  x^{2} -x-6=0, and the roots are 6 and -1.
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