SOLUTION: the square of an integer is 30 more than the integer. find the integer.

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Question 192501: the square of an integer is 30 more than the integer. find the integer.
Answer by nerdybill(7384) About Me  (Show Source):
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the square of an integer is 30 more than the integer. find the integer.
.
Let x = the integer
then
x^2 = x + 30
x^2 -x -30 = 0
(x-6)(x+5) = 0
x = {-5,6}
.
Therefore, the integer could either be -5 or 6