SOLUTION: What is the number if the square of that number is increased by 4 times the number, the result is 12?

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Question 424631: What is the number if the square of that number is increased by 4 times the number, the result is 12?
Answer by Gersid(33) About Me  (Show Source):
You can put this solution on YOUR website!
You will get two answers for this problem!
n%5E2%2B4n+=+12"...if the square of that number (n) is increased by 4 times the number, the result is 12."
Subtract 12 from both sides.
n%5E2%2B4n-12+=+0 Factor this quadratic equation.
%28n-2%29%28n%2B6%29+=+0 Apply the zero product rule.
n-2+=+0 or n%2B6+=+0 then...
n+=+2 or n+=+-6
The two numbers are 2 and -6