a whole number increased by its square is two more than twice itself. find the number

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17-04-2020
Mathematics

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a whole number increased by its square is two more than twice itself. find the number

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mendozakatherine511 mendozakatherine511 · Answer 1 · 2020-04-17T04:27:45+02:00

mendozakatherine511 mendozakatherine511

17-04-2020

Let x be the number.
=> x + x² = 2x + 2
=> x² - x - 2 = 0
=> (x + 1)(x - 2) = 0
---> x = -1, or 2
You didn't mention negatives, but guessing you'd want "2".

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