SOLUTION: Please help me solve this equation nē-n-930=0

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Question 154093: Please help me solve this equation
nē-n-930=0
Answer by orca(409) About Me  (Show Source):
You can put this solution on YOUR website!
SOLUTION (by factoring)
As -930 = (-31)*30, and the sum of the two factor = -31+30=-1, we can factor the quadratic as:
n%5E2+-+n+-930=%28n-31%29%28n%2B30%29
So the equation becomes:
(n-31)(n+30)=0
Solving for n, we have
n = 31 or n = -30
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SOLUTION(by Quadratic formula)
Substituting
a = 1
b = -1
c = -930
into the quadratic formula, we have
n+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
n+=+%28-%28-1%29+%2B-+sqrt%28+%28-1%29%5E2-4%2A1%2A%28-930%29+%29%29%2F%282%2A1%29+
n+=+%281+%2B-+sqrt%281+%2B+3720+%29%29%2F2+
n+=+%281+%2B-+sqrt%28+3721+%29%29%2F2+
n+=+%281+%2B-+61%29%2F2+
So
n+=+%281+%2B+61%29%2F2=62%2F2=31+
Or n+=+%281+-+61%29%2F2=%28-60%29%2F2=-30+