Hi Tahlia,
To solve this equation you will need to simplify the equation by determining the greatest common factor and then solving for n.
2n^{2 }+ 4n = 0 (the greatest common factor among 2n^{2} and 4n is 2n)
=> 2n(n + 2) = 0.
Now solve for n:
2n = 0 => n = 0 OR
n + 2 = 0 => n = 2
Hope this helps!
9/16/2013

Efe M.
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