SOLUTION: A number added to its square gives 20. The number is?

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Question 1091152: A number added to its square gives 20. The number is?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
Let n be the number. Then:
nē+n=20
nē+n-20=0
(n+5)(n-4)=0
n=-5 or 4
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